Article(id=1215670321550643310, tenantId=1146029695717560320, journalId=1149652044408987649, issueId=1215670311140381365, articleNumber=null, orderNo=null, doi=10.19812/j.cnki.jfsq11-5956/ts.20250429001, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1745856000000, receivedDateStr=2025-04-29, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1767767990720, onlineDateStr=2026-01-07, pubDate=1753372800000, pubDateStr=2025-07-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1767767990720, onlineIssueDateStr=2026-01-07, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1767767990720, creator=13701087609, updateTime=1767767990720, updator=13701087609, issue=Issue{id=1215670311140381365, tenantId=1146029695717560320, journalId=1149652044408987649, year='2025', volume='16', issue='14', pageStart='1', pageEnd='326', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1767767988237, creator=13701087609, updateTime=1767970098618, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1216518023599538606, tenantId=1146029695717560320, journalId=1149652044408987649, issueId=1215670311140381365, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1216518023599538607, tenantId=1146029695717560320, journalId=1149652044408987649, issueId=1215670311140381365, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=195, endPage=203, ext={EN=ArticleExt(id=1215670322746019986, articleId=1215670321550643310, tenantId=1146029695717560320, journalId=1149652044408987649, language=EN, title=Analysis of content characteristics and quality evaluation of Siraitia grosvenorii fruit components, columnId=1151895321388347923, journalTitle=Journal of Food Safety & Quality, columnName=Food Analysis and Detection, runingTitle=null, highlight=null, articleAbstract=

Objective To systematically analyze the main chemical components and evaluate the quality of Siraitia grosvenorii fruits. Methods High performance liquid chromatography (HPLC) was employed to determine mogroside V, total sugar, vitamin C, moisture and water-soluble extracts in samples of different cultivars (Yongqing 1, Bolin 3, Nongyuan B6 and Qingpi 3), supplemented with additional tests for mogroside V content to enhance data integrity. After the data were standardized, multidimensional analysis including correlation analysis, principal component analysis, and hierarchical cluster analysis was conducted to assess fruit quality. Results Certain variations were observed in different indicators of Siraitia grosvenorii fruits, with coefficients of variation ranging between 5.28% and 35.38%. Several parameter groups exhibited statistically significant correlations at P<0.05 (significant) or P<0.01 (highly significant) levels. The 3 principal components were proposed in principal component analysis, and the contribution rate of cumulative variance was 91.13%. Through hierarchical cluster analysis (squared euclidean distance 11.5), the samples were categorized into 4 distinct groups. The Siraitia grosvenorii in groups Ⅰ and Ⅱ exhibited superior comprehensive performance, while those in group Ⅳ demonstrated relatively poorer overall quality. Conclusion The classification of Siraitia grosvenorii provides a data-driven reference for its cultivation, processing and application, thereby facilitating the enhancement of its quality and practical value.

, correspAuthors=Ying-Ying WEI, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Peng LIU, Shao-Mei ZHANG, Yu-Lin DUAN, Ying-Ying WEI, Yu-Jia JIANG, Zu-Lin HUANG), CN=ArticleExt(id=1215670324302106918, articleId=1215670321550643310, tenantId=1146029695717560320, journalId=1149652044408987649, language=CN, title=罗汉果果实组分含量特征分析及其品质评价, columnId=1151895321958773274, journalTitle=食品安全质量检测学报, columnName=食品分析与检测, runingTitle=null, highlight=null, articleAbstract=

目的 系统分析罗汉果果实的主要化学组分含量特征, 并进行品质评价。方法 采用高效液相色谱法(high performance liquid chromatography, HPLC)等方法对永青1号、伯林3号、农院B6、青皮3号等不同品种罗汉果样本测定罗汉果皂苷V、总糖、维生素C、水分及水浸出物等主要成分的含量, 并补充检测了罗汉果皂苷V含量以完善数据体系。数据经标准化预处理后, 运用相关性分析、主成分分析和聚类分析进行多维度解析, 对罗汉果的品质进行分析与评价。结果 罗汉果果实的不同指标存在一定差异, 其变异系数介于5.28%至35.38%之间。其中, 存在几组参数具有统计学上显著(P<0.05)或极显著(P<0.01)的相关性, 在进行主成分分析后, 提取出3个主成分, 累计贡献率为91.13%, 通过进行聚类分析(平方欧氏距离11.5), 将其分成4大类, 第Ⅰ、Ⅱ类罗汉果综合表现较好, 第Ⅳ类罗汉果综合品质相对较差。结论 罗汉果分类对罗汉果种植、加工和应用提供了数据参考, 有助于提升其品质和应用价值。

, correspAuthors=韦莹莹, authorNote=null, correspAuthorsNote=
*韦莹莹(1979—), 女, 硕士, 工程师, 主要研究方向为化妆品药品质量安全。E-mail:
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刘鹏(1999—), 男, 硕士, 主要研究方向为食品化妆品质量安全及检测。E-mail:

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刘鹏(1999—), 男, 硕士, 主要研究方向为食品化妆品质量安全及检测。E-mail:

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J Food Safety & Quality, 2023, 14(21): 283-291., articleTitle=Evaluation of taste quality of Fuzhuan tea based on principal component analysis and cluster analysis, refAbstract=null)], funds=[Fund(id=1215686857803878691, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, awardId=桂地标食20182006号, language=CN, fundingSource=广西卫健委项目(桂地标食20182006号), fundOrder=null, country=null), Fund(id=1215686857887764779, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, awardId=2018-0329, language=CN, fundingSource=南宁市场局项目(2018-0329), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1215686849339773753, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, xref=1, ext=[AuthorCompanyExt(id=1215686849356550970, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, companyId=1215686849339773753, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1 School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China), AuthorCompanyExt(id=1215686849364939579, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, companyId=1215686849339773753, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1 广西民族大学化学化工学院, 南宁 530006)]), AuthorCompany(id=1215686849511740223, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, xref=2, ext=[AuthorCompanyExt(id=1215686849520128832, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, companyId=1215686849511740223, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2 Guangxi Zhuang Autonomous Region Ecological and Environmental Monitoring Centre, Nanning 530028, China), AuthorCompanyExt(id=1215686849528517441, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, companyId=1215686849511740223, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2 广西壮族自治区生态环境监测中心, 南宁 530028)]), AuthorCompany(id=1215686849637569349, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, xref=3, ext=[AuthorCompanyExt(id=1215686849658540870, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, companyId=1215686849637569349, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=3 Guangxi Center for Food and Drug Evaluation & Inspection, Nanning 530029, China), AuthorCompanyExt(id=1215686849671123784, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, companyId=1215686849637569349, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=3 广西壮族自治区食品药品审评查验中心, 南宁 530029)]), AuthorCompany(id=1215686849826313037, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, xref=4, ext=[AuthorCompanyExt(id=1215686849843090254, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, companyId=1215686849826313037, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=4 The People's Hospital of Guangxi Zhuang Autonomous Region , Nanning 530022, China), AuthorCompanyExt(id=1215686849847284559, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, companyId=1215686849826313037, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=4 广西壮族自治区人民医院, 南宁 530022)])], figs=[ArticleFig(id=1215686854268080240, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=EN, label=Fig.1, caption=Frequency distribution histogram of mogroside V content, figureFileSmall=Fph8lAGqqgoVRmFvogDztA==, figureFileBig=uYRirj7B1RtPayEJ7HDOww==, tableContent=null), ArticleFig(id=1215686854389715073, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=CN, label=图1, caption=罗汉果皂苷V含量的频率分布直方图, figureFileSmall=Fph8lAGqqgoVRmFvogDztA==, figureFileBig=uYRirj7B1RtPayEJ7HDOww==, tableContent=null), ArticleFig(id=1215686854532321420, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=EN, label=Fig.2, caption=Pearson correlation heatmap

注: *P<0.05; **P<0.01。

, figureFileSmall=EiVGcbh8phdqeJEx2hhJhQ==, figureFileBig=LKDIVXAc3duGJRSceVPIjg==, tableContent=null), ArticleFig(id=1215686854624596117, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=CN, label=图2, caption=Pearson相关性热图, figureFileSmall=EiVGcbh8phdqeJEx2hhJhQ==, figureFileBig=LKDIVXAc3duGJRSceVPIjg==, tableContent=null), ArticleFig(id=1215686854729453722, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=EN, label=Fig.3, caption=PCA of different varieties of Siraitia grosvenorii, figureFileSmall=RZxO/T06u0iNHwFbMEPMEA==, figureFileBig=N45a0ifwCw/0yZd7r66FiQ==, tableContent=null), ArticleFig(id=1215686854846894248, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=CN, label=图3, caption=不同品种罗汉果的PCA

注: 球面表示95%置信区间, 点表示所分析的18个不同种类的罗汉果样品, 数字表示样品编号(同表1), 箭头可以直观地展示载荷, 能够表示5个原始指标在3个主成分中的重要性。

, figureFileSmall=RZxO/T06u0iNHwFbMEPMEA==, figureFileBig=N45a0ifwCw/0yZd7r66FiQ==, tableContent=null), ArticleFig(id=1215686854993694898, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=EN, label=Fig.4, caption=HCA of different species of Siraitia grosvenorii, figureFileSmall=in5mpruG2aSxBno/1pSbwA==, figureFileBig=X9aTQBPrSRIKjgcpHU6eRw==, tableContent=null), ArticleFig(id=1215686855127912638, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=CN, label=图4, caption=不同种类罗汉果的HCA, figureFileSmall=in5mpruG2aSxBno/1pSbwA==, figureFileBig=X9aTQBPrSRIKjgcpHU6eRw==, tableContent=null), ArticleFig(id=1215686856398786757, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=EN, label=Table 1, caption=

Fundamental quality indicators of Siraitia grosvenorii

, figureFileSmall=null, figureFileBig=null, tableContent=
编号 品种 罗汉果皂苷
Ⅴ/(g/100 g)
水浸出物/% 总糖
/(g/100 g)
维生素C
/(mg/100 g)
水分
/%
1 永青1号 0.94 37.80 17.70 287.00 77.40
2 伯林3号 1.15 40.40 26.20 283.00 77.80
3 农院B6 1.38 41.70 27.30 272.00 81.60*
4 青皮3号 1.07 49.00 30.40 332.00 71.30
5 青皮4号 1.06 51.50* 34.00 248.00 71.80
6 大叶青皮 1.83** 45.40 29.10 305.00 76.00
7 农家青皮 0.85 41.30 20.30 278.00 68.10
8 青皮BP 0.72 34.70 19.40 280.00 75.70
9 青皮BD 1.16 44.10 27.50 57.90* 67.10
10 青皮ND 1.05 40.50 21.60 294.00 73.00
11 杂交伯林 1.03 44.70 26.70 330.00 74.20
12 红毛2号 0.92 44.50 30.90 310.00 70.30
13 野生红毛 0.73 31.20* 8.60* 121.00 78.80
14 农家红毛 0.96 41.30 18.40 299.00 75.90
15 杂交红毛 1.35 44.40 24.10 324.00 68.50
16 白毛果 0.79 36.80 18.30 35.20* 75.60
17 杂交白毛 0.70 41.60 22.40 317.00 74.60
18 长滩果 0.98 37.60 17.30 222.00 74.40
平均值 1.04 41.58 23.34 255.28 74.01
), ArticleFig(id=1215686856512032973, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=CN, label=表1, caption=

罗汉果的基本品质指标

, figureFileSmall=null, figureFileBig=null, tableContent=
编号 品种 罗汉果皂苷
Ⅴ/(g/100 g)
水浸出物/% 总糖
/(g/100 g)
维生素C
/(mg/100 g)
水分
/%
1 永青1号 0.94 37.80 17.70 287.00 77.40
2 伯林3号 1.15 40.40 26.20 283.00 77.80
3 农院B6 1.38 41.70 27.30 272.00 81.60*
4 青皮3号 1.07 49.00 30.40 332.00 71.30
5 青皮4号 1.06 51.50* 34.00 248.00 71.80
6 大叶青皮 1.83** 45.40 29.10 305.00 76.00
7 农家青皮 0.85 41.30 20.30 278.00 68.10
8 青皮BP 0.72 34.70 19.40 280.00 75.70
9 青皮BD 1.16 44.10 27.50 57.90* 67.10
10 青皮ND 1.05 40.50 21.60 294.00 73.00
11 杂交伯林 1.03 44.70 26.70 330.00 74.20
12 红毛2号 0.92 44.50 30.90 310.00 70.30
13 野生红毛 0.73 31.20* 8.60* 121.00 78.80
14 农家红毛 0.96 41.30 18.40 299.00 75.90
15 杂交红毛 1.35 44.40 24.10 324.00 68.50
16 白毛果 0.79 36.80 18.30 35.20* 75.60
17 杂交白毛 0.70 41.60 22.40 317.00 74.60
18 长滩果 0.98 37.60 17.30 222.00 74.40
平均值 1.04 41.58 23.34 255.28 74.01
), ArticleFig(id=1215686856675610837, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=EN, label=Table 2, caption=

Descriptive statistical results of fundamental indicators in Siraitia grosvenorii

, figureFileSmall=null, figureFileBig=null, tableContent=
统计参数 罗汉果皂苷Ⅴ
/(g/100 g)
水浸出物
/%
总糖
/(g/100 g)
维生素C
/(mg/100 g)
水分
/%
N 31 18 18 18 18
平均值 1.01 41.58 23.34 255.28 74.01
标准偏差 0.24 4.92 6.28 90.31 3.91
方差 0.06 24.20 39.46 8155.59 15.29
最小值 0.58 31.20 8.60 35.20 67.10
最大值 1.83 51.50 34.00 332.00 81.60
变异系数/% 23.44 11.83 26.91 35.38 5.28
偏度 1.247 -0.080 -0.420 -1.695 -0.131
峰度 3.642 0.399 0.244 1.827 -0.416
), ArticleFig(id=1215686856801439964, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=CN, label=表2, caption=

罗汉果基本指标的描述性统计结果

, figureFileSmall=null, figureFileBig=null, tableContent=
统计参数 罗汉果皂苷Ⅴ
/(g/100 g)
水浸出物
/%
总糖
/(g/100 g)
维生素C
/(mg/100 g)
水分
/%
N 31 18 18 18 18
平均值 1.01 41.58 23.34 255.28 74.01
标准偏差 0.24 4.92 6.28 90.31 3.91
方差 0.06 24.20 39.46 8155.59 15.29
最小值 0.58 31.20 8.60 35.20 67.10
最大值 1.83 51.50 34.00 332.00 81.60
变异系数/% 23.44 11.83 26.91 35.38 5.28
偏度 1.247 -0.080 -0.420 -1.695 -0.131
峰度 3.642 0.399 0.244 1.827 -0.416
), ArticleFig(id=1215686856902103268, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=EN, label=Table 3, caption=

Content of mogroside V in different varieties of Siraitia grosvenorii

, figureFileSmall=null, figureFileBig=null, tableContent=
品类 产品编号 罗汉果皂苷V/(g/100 g)
罗汉果 LHG-01 1.17
罗汉果 LHG-02 0.98
罗汉果 LHG-03 0.92
罗汉果 LHG-04 1.00
罗汉果 LHG-05 1.23
罗汉果 LHG-06 0.99
罗汉果 LHG-07 1.07
罗汉果 LHG-08 0.97
罗汉果 LHG-09 0.58
罗汉果 LHG-10 0.79
罗汉果 LHG-11 1.18
罗汉果 LHG-12 1.09
罗汉果 LHG-13 0.87
), ArticleFig(id=1215686857027932398, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=CN, label=表3, caption=

不同品种罗汉果的皂苷V的含量

, figureFileSmall=null, figureFileBig=null, tableContent=
品类 产品编号 罗汉果皂苷V/(g/100 g)
罗汉果 LHG-01 1.17
罗汉果 LHG-02 0.98
罗汉果 LHG-03 0.92
罗汉果 LHG-04 1.00
罗汉果 LHG-05 1.23
罗汉果 LHG-06 0.99
罗汉果 LHG-07 1.07
罗汉果 LHG-08 0.97
罗汉果 LHG-09 0.58
罗汉果 LHG-10 0.79
罗汉果 LHG-11 1.18
罗汉果 LHG-12 1.09
罗汉果 LHG-13 0.87
), ArticleFig(id=1215686857187315962, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=EN, label=Table 4, caption=

Principal component loadings matrix

, figureFileSmall=null, figureFileBig=null, tableContent=
指标 载荷系数
PC1 PC2 PC3
罗汉果皂苷Ⅴ
/(g/100 g)
0.392 0.432 0.580
水浸出物/% 0.584 -0.126 -0.00183
总糖/(g/100 g) 0.569 -0.019 0.107
维生素C/(mg/100 g) 0.311 0.446 -0.796
水分/% -0.289 0.773 0.137
特征值 2.668 1.102 0.786
贡献率/% 53.36% 22.05% 15.72%
累计贡献率/% 53.36% 75.40% 91.13%
), ArticleFig(id=1215686857317339400, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=CN, label=表4, caption=

主成分载荷矩阵

, figureFileSmall=null, figureFileBig=null, tableContent=
指标 载荷系数
PC1 PC2 PC3
罗汉果皂苷Ⅴ
/(g/100 g)
0.392 0.432 0.580
水浸出物/% 0.584 -0.126 -0.00183
总糖/(g/100 g) 0.569 -0.019 0.107
维生素C/(mg/100 g) 0.311 0.446 -0.796
水分/% -0.289 0.773 0.137
特征值 2.668 1.102 0.786
贡献率/% 53.36% 22.05% 15.72%
累计贡献率/% 53.36% 75.40% 91.13%
), ArticleFig(id=1215686857430585615, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=EN, label=Table 5, caption=

PCA scores and rankings of 18 kinds of Siraitia grosvenorii

, figureFileSmall=null, figureFileBig=null, tableContent=
排名 样本 得分
综合 PC1 PC2 PC3
1 大叶青皮 1.435 1.298 1.676 1.564
2 农院B6 0.786 0.216 2.003 1.017
3 青皮4号 0.703 1.416 -0.690 0.238
4 青皮3号 0.541 1.243 -0.303 -0.661
5 杂交红毛 0.430 0.912 -0.321 -0.149
6 伯林3号 0.316 0.056 1.032 0.194
7 杂交伯林 0.276 0.555 0.291 -0.690
8 红毛2号 0.162 0.813 -0.709 -0.825
9 青皮BD 0.085 0.416 -2.121 2.056
10 青皮ND -0.086 -0.038 0.042 -0.428
11 农家红毛 -0.205 -0.356 0.468 -0.638
12 永青1号 -0.352 -0.760 0.752 -0.519
13 杂交白毛 -0.407 -0.241 -0.097 -1.406
14 长滩果 -0.443 -0.763 -0.053 0.096
15 农家青皮 -0.494 -0.037 -1.269 -0.960
16 青皮BP -0.735 -1.019 0.143 -1.002
17 白毛果 -0.759 -1.370 -0.956 1.594
18 野生红毛 -1.254 -2.340 0.111 0.519
), ArticleFig(id=1215686857581580568, tenantId=1146029695717560320, journalId=1149652044408987649, articleId=1215670321550643310, language=CN, label=表5, caption=

18种罗汉果的PCA得分与排名

, figureFileSmall=null, figureFileBig=null, tableContent=
排名 样本 得分
综合 PC1 PC2 PC3
1 大叶青皮 1.435 1.298 1.676 1.564
2 农院B6 0.786 0.216 2.003 1.017
3 青皮4号 0.703 1.416 -0.690 0.238
4 青皮3号 0.541 1.243 -0.303 -0.661
5 杂交红毛 0.430 0.912 -0.321 -0.149
6 伯林3号 0.316 0.056 1.032 0.194
7 杂交伯林 0.276 0.555 0.291 -0.690
8 红毛2号 0.162 0.813 -0.709 -0.825
9 青皮BD 0.085 0.416 -2.121 2.056
10 青皮ND -0.086 -0.038 0.042 -0.428
11 农家红毛 -0.205 -0.356 0.468 -0.638
12 永青1号 -0.352 -0.760 0.752 -0.519
13 杂交白毛 -0.407 -0.241 -0.097 -1.406
14 长滩果 -0.443 -0.763 -0.053 0.096
15 农家青皮 -0.494 -0.037 -1.269 -0.960
16 青皮BP -0.735 -1.019 0.143 -1.002
17 白毛果 -0.759 -1.370 -0.956 1.594
18 野生红毛 -1.254 -2.340 0.111 0.519
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罗汉果果实组分含量特征分析及其品质评价
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刘鹏 1 , 张少梅 2 , 段玉林 1, 3 , 韦莹莹 3, * , 蒋宇佳 3 , 黄祖林 4
食品安全质量检测学报 | 食品分析与检测 2025,16(14): 195-203
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食品安全质量检测学报 | 食品分析与检测 2025, 16(14): 195-203
罗汉果果实组分含量特征分析及其品质评价
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刘鹏1 , 张少梅2, 段玉林1, 3, 韦莹莹3, * , 蒋宇佳3, 黄祖林4
作者信息
  • 1 广西民族大学化学化工学院, 南宁 530006
  • 2 广西壮族自治区生态环境监测中心, 南宁 530028
  • 3 广西壮族自治区食品药品审评查验中心, 南宁 530029
  • 4 广西壮族自治区人民医院, 南宁 530022
  • 刘鹏(1999—), 男, 硕士, 主要研究方向为食品化妆品质量安全及检测。E-mail:

通讯作者:

*韦莹莹(1979—), 女, 硕士, 工程师, 主要研究方向为化妆品药品质量安全。E-mail:
Analysis of content characteristics and quality evaluation of Siraitia grosvenorii fruit components
Peng LIU1 , Shao-Mei ZHANG2, Yu-Lin DUAN1, 3, Ying-Ying WEI3, * , Yu-Jia JIANG3, Zu-Lin HUANG4
Affiliations
  • 1 School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China
  • 2 Guangxi Zhuang Autonomous Region Ecological and Environmental Monitoring Centre, Nanning 530028, China
  • 3 Guangxi Center for Food and Drug Evaluation & Inspection, Nanning 530029, China
  • 4 The People's Hospital of Guangxi Zhuang Autonomous Region , Nanning 530022, China
出版时间: 2025-07-25 doi: 10.19812/j.cnki.jfsq11-5956/ts.20250429001
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目的 系统分析罗汉果果实的主要化学组分含量特征, 并进行品质评价。方法 采用高效液相色谱法(high performance liquid chromatography, HPLC)等方法对永青1号、伯林3号、农院B6、青皮3号等不同品种罗汉果样本测定罗汉果皂苷V、总糖、维生素C、水分及水浸出物等主要成分的含量, 并补充检测了罗汉果皂苷V含量以完善数据体系。数据经标准化预处理后, 运用相关性分析、主成分分析和聚类分析进行多维度解析, 对罗汉果的品质进行分析与评价。结果 罗汉果果实的不同指标存在一定差异, 其变异系数介于5.28%至35.38%之间。其中, 存在几组参数具有统计学上显著(P<0.05)或极显著(P<0.01)的相关性, 在进行主成分分析后, 提取出3个主成分, 累计贡献率为91.13%, 通过进行聚类分析(平方欧氏距离11.5), 将其分成4大类, 第Ⅰ、Ⅱ类罗汉果综合表现较好, 第Ⅳ类罗汉果综合品质相对较差。结论 罗汉果分类对罗汉果种植、加工和应用提供了数据参考, 有助于提升其品质和应用价值。

罗汉果  /  主成分分析  /  聚类分析  /  品质评价

Objective To systematically analyze the main chemical components and evaluate the quality of Siraitia grosvenorii fruits. Methods High performance liquid chromatography (HPLC) was employed to determine mogroside V, total sugar, vitamin C, moisture and water-soluble extracts in samples of different cultivars (Yongqing 1, Bolin 3, Nongyuan B6 and Qingpi 3), supplemented with additional tests for mogroside V content to enhance data integrity. After the data were standardized, multidimensional analysis including correlation analysis, principal component analysis, and hierarchical cluster analysis was conducted to assess fruit quality. Results Certain variations were observed in different indicators of Siraitia grosvenorii fruits, with coefficients of variation ranging between 5.28% and 35.38%. Several parameter groups exhibited statistically significant correlations at P<0.05 (significant) or P<0.01 (highly significant) levels. The 3 principal components were proposed in principal component analysis, and the contribution rate of cumulative variance was 91.13%. Through hierarchical cluster analysis (squared euclidean distance 11.5), the samples were categorized into 4 distinct groups. The Siraitia grosvenorii in groups Ⅰ and Ⅱ exhibited superior comprehensive performance, while those in group Ⅳ demonstrated relatively poorer overall quality. Conclusion The classification of Siraitia grosvenorii provides a data-driven reference for its cultivation, processing and application, thereby facilitating the enhancement of its quality and practical value.

Siraitia grosvenorii  /  principal component analysis  /  hierarchical cluster analysis  /  quality evaluation
刘鹏, 张少梅, 段玉林, 韦莹莹, 蒋宇佳, 黄祖林. 罗汉果果实组分含量特征分析及其品质评价. 食品安全质量检测学报, 2025 , 16 (14) : 195 -203 . DOI: 10.19812/j.cnki.jfsq11-5956/ts.20250429001
Peng LIU, Shao-Mei ZHANG, Yu-Lin DUAN, Ying-Ying WEI, Yu-Jia JIANG, Zu-Lin HUANG. Analysis of content characteristics and quality evaluation of Siraitia grosvenorii fruit components[J]. Journal of Food Safety & Quality, 2025 , 16 (14) : 195 -203 . DOI: 10.19812/j.cnki.jfsq11-5956/ts.20250429001
根据国家药典委员会中华人民共和国药典的描述: 葫芦科植物罗汉果(Siraitia grosvenorii), 可用于肺热燥咳, 咽痛失音, 肠燥便秘[1]。在中国, 作为天然甜味剂以及对肺充血、感冒和咽喉痛的治疗药物已经有数百年的历史, 有着悠久的种植历史[2-3]。近年来, 随着对罗汉果成分研究的不断深入, 其在健康食品和功能性饮品中的应用越来越广泛[4]。广西罗汉果资源丰富, 主要在永福、临桂和龙胜等地出产, 是重要的出口商品之一[5]。罗汉果的食用方式有很多, 一般作为饮品食用[6], 而主要甜味成分罗汉果皂苷V, 作为相对健康的优质甜味剂也逐渐被人们利用[7-10], 对罗汉果成分的分类和评价, 有助于罗汉果饮品产业以及甜味剂产业更好地选择或培育罗汉果。
本研究收集了永青1号、伯林3号、农院B6、青皮3号等18个样本的罗汉果产品, 以罗汉果的不同成分含量为数据依据, 进行系统分析。研究参考相关国家标准, 采用高效液相色谱法(high performance liquid chromatography, HPLC)、直接干燥法等方法, 测定罗汉果中的罗汉果甜苷V、糖类、维生素和水分等关键成分。采用相关性分析、主成分分析(principal component analysis, PCA)和聚类分析(hierarchical cluster analysis, HCA)等应用广泛的食品综合指标评价方法[11-13], 对罗汉果进行多指标特征分析与综合评价。目前, 针对罗汉果的研究大都缺乏多指标综合评价体系, 本研究以PCA法的因子分析为分类和评价的基础, 可以减少单一成分评价的局限性, 构建多指标体系。旨在为罗汉果的品质管理和市场分级提供参考[14], 帮助相关产业从传统经验判断向现代标准化管理转型, 为种植资源优化与商品定价提供数据驱动型参考。
在广西本地市场、广西药用植物园等途径购买本研究所需的相应品种罗汉果样品, 用无菌纱布包裹, 放入密封袋中, 尽量排出空气后密封, 4 ℃冷藏保存。
Agilent1260高效液相色谱仪(美国Agilent公司); AL204分析天平[感量0.1 mg, 梅特勒托利多科技(中国)有限公司]; SC100-A28循环恒温水浴仪[赛默飞世尔科技(中国)有限公司]; 101-1BS电热鼓风干燥箱(天津市泰斯特仪器有限公司); XBridge C18色谱柱(4.6 mm×150 mm, 5 μm)(美国Waters公司); M0042大孔吸附树脂柱AB-8(北京索莱宝科技有限公司)。
甲醇、氢氧化钠、硫酸铜、盐酸、冰乙酸、乙醇(分析纯, 国药集团化学试剂有限公司); 乙腈(色谱纯, 上海国药集团化学试剂有限公司); 酒石酸钾钠、蔗糖、甲基红指示剂、乙酸锌、亚铁氰化钾、亚甲基蓝(分析纯, 天津市风船化学试剂科技有限公司); 偏磷酸、草酸、抗坏血酸(分析纯, 天津市致远化学试剂有限公司); 2,6-二氯吲哚酚钠盐(纯度91%, 上海研生实业有限公司); 罗汉果皂苷V(纯度98.5%, 中国食品药品检定研究院); 实验用水是实验室自制的一级水。
冲洗罗汉果样品, 烘干, 粉碎, 保存于干燥箱。取样品粉末[过四号筛(250±9.9) μm]约0.5 g, 精密称定, 加入甲醇50 mL, 密塞, 称定重量, 加热回流2 h, 放冷, 称定, 用甲醇补足重量, 摇匀, 滤过。精密量取续滤液20 mL, 回收溶剂至干, 加水10 mL溶解, 通过大孔吸附树脂柱AB-8(内径为1 cm, 柱高为10 cm), 以水100 mL洗脱, 弃去水液, 再用20%乙醇100 mL和稀乙醇100 mL依次洗脱, 收集洗脱液, 回收溶剂至干, 残渣加流动相溶解, 转移至10 mL量瓶中, 加流动相至刻度, 摇匀, 即得, 待测。
对照样品: 精密称取105 ℃下干燥至恒重的罗汉果皂苷V对照品2 mg(精确至0.0001 g)于10 mL容量瓶中, 用甲醇溶液溶解并稀释至刻度, 混匀制成每1 mL含0.2 mg的溶液。
分别精密吸取对照品溶液与样品待测溶液各10 μL, 注入液相色谱仪, 测定, 以保留时间定性, 峰面积定量。色谱条件: 测定罗汉果皂苷V时使用C18色谱柱(4.6 mm×150 mm, 5 μm)十八烷基硅烷键合硅胶为填充剂, 以乙腈-水(23:77, V:V)为流动相, 检测波长为203 nm, 进样量为10 μL, 柱温为30 ℃, 理论塔板数按罗汉果皂苷V计算应不低于3000。
取玻璃制的扁形称量瓶, 置于101~105 ℃干燥箱中, 加热1 h, 取出盖好, 置干燥器内冷却0.5 h, 称量, 并重复干燥至前后两次质量差不超过2 mg。将混合均匀的试样切碎, 称取2~10 g试样(精确至0.0001 g), 放入此称量瓶中, 试样厚度不超过5 mm, 加盖, 精密称量后, 干燥(101~105 ℃) 2~4 h后, 盖好取出, 放入干燥器内冷却0.5 h后称量。干燥1 h左右, 取出, 放入干燥器内冷却0.5 h后再称量。并重复以上操作至前后两次质量差不超过2 mg, 即为恒重。两次恒重值在最后计算中, 取质量较小的一次称量值。
需要把使用的样品粉碎, 使能通过二号筛[(850±29) μm], 并混合均匀。取样品2~4 g, 精密称定, 置于100~250 mL的锥形瓶中, 精密加水50~100 mL, 称定重量, 静置1 h后, 连接回流冷凝管, 加热至沸腾, 并保持微沸1 h。放冷后, 取下锥形瓶, 密塞, 再称定重量, 用水补足减失的重量, 摇均, 用干燥滤器滤过, 精密量取滤液25 mL, 置于已干燥至恒重的蒸发皿中, 水浴上蒸干后, 于105 ℃干燥3 h, 置于干燥器中冷却30 min, 迅速精密称定重量。
称取硫酸铜(CuSO₄·5H2O) 34.6 g定容至500 mL, 为费林试剂甲。称取氢氧化钠50 g和酒石酸钾钠(KNaC4O6H4·4H2O) 138 g定容至500 mL, 抽滤为费林试剂乙。称取9.5 g蔗糖(分析纯)溶解并加入6 mol/L盐酸10 mL定容至100 mL, 25 ℃保温24 h定容为酸化的1%转化糖液。
测定时, 取1%转化糖液25.00 mL, 加入甲基红指示剂一滴, 用1 mol/L氢氧化钠溶液中和后用水定容为1 mg/mL转化糖标准溶液。称取100 g鲜样加水, 捣成质量比1:1的匀浆, 称取50.0 g, 定容至200 mL。置(80±2) ℃水浴保温30 min, 其间摇动, 加入乙酸锌溶液及亚铁氰化钾溶液各2~5 mL, 冷却至室温后, 用水定容, 过滤备用。
亚甲基蓝溶液: 称取0.5 g亚甲基蓝溶于100 mL水中。乙酸锌溶液: 称取21.9 g乙酸锌[Zn(OAC)2·2H2O]溶于水中, 加冰乙酸3 mL, 稀释至100 mL。亚铁氰化钾溶液: 称取10.6 g亚铁氰化钾[K4Fe(CN)6·3H2O]溶于水, 稀释至100 mL。
取待测液100 mL, 加6 mol/L盐酸10 mL。在(80±2) ℃水浴加热10 min, 放入冷水槽中冷却后, 加甲基红指示剂2滴用氢氧化钠溶液中和, 用水定容。取费林试剂甲、乙各5.00 mL或10.00 mL混合液, 加入待测糖液约15 mL, 在电炉上加热至沸, 约沸15 s后迅速滴加待测糖液, 至呈现极轻微的蓝色为止, 此时加入0.5%亚甲基蓝指示剂6滴, 继续滴加待测糖液, 直至溶液蓝色褪尽为止, 记下待测糖液的用量视为预测实验。同样将费林试剂甲、乙混合液加入少0.5 mL的待测糖液, 并补加水与标定费林试剂时的反应体积一致, 按费林试剂标定操作滴至终点。前后沸热时间须在3 min左右。待测糖液消耗量应控制在15~50 mL范围内, 不能大于标定费林试剂所用标准糖液体积。否则应增减称样量重新制备待测液。
称取100 mg(准确至0.l mg)抗坏血酸标准溶液, 溶于浸提剂中并稀至100 mL, 现配现用。称取碳酸氢钠52 mg溶解在200 mL热蒸馏水中, 然后称取2,6-二氯靛酚50 mg溶解在上述碳酸氢钠溶液中。冷却定容至250 mL, 过滤至棕色瓶内, 保存在冰箱中。每次使用前, 用标准抗坏血酸标定其滴定度。同时, 另取10 mL浸提剂做空白实验。
称取100 g样品, 加100 mL浸提剂, 迅速捣成匀浆。称10~40 g浆状样品, 用浸提剂将样品移入100 mL容量瓶, 并稀释至刻度, 摇匀过滤, 得到样液。吸取10 mL滤液放入50 mL锥形瓶中, 用已标定过的2,6-二氯靛酚溶液滴定, 直至溶液呈粉红色15 s不褪色为止。同时做空白实验。
按公式(1)计算罗汉果皂苷V含量:
$K/\%=\frac{{C}_{1}\times \text{ƒ}\times {V}_{2}\times {V}_{0}}{m\times \text{(}1-{\omega }_{\text{s}}\text{)}\times {V}_{1}\times 1000}\times 100\%$
式中: K为样品中罗汉果皂苷V含量, %; C1为样品待测溶液中罗汉果皂苷V含量, mg/mL; ƒ为样品溶液稀释倍数; V0为样品加入甲醇提取液体积, mL; V1为样品续滤液体积, mL; V2为样品待测溶液定容体积, mL; m为样品质量, g; ωs为样品水分含量, %。
精确度: 在重复性条件下获得的两次独立测定结果的绝对差值与算术平均值的比值不大于5.0%。
按公式(2)计算水分含量:
$X/\%=\frac{{m}_{1}-{m}_{2}}{{m}_{1}-{m}_{3}}\times 100\%$
式中: X为试样中水分的含量, %; m1为称量瓶和试样的质量, g; m2为称量瓶和试样干燥后的质量, g; m3为称量瓶的质量, g; 100是单位换算系数。
精确度: 在重复性条件下获得的两次独立测定结果的绝对差值不得超过算术平均值的10%。
按公式(3)计算水浸出物含量:
${\omega }_{1}/\%=\frac{{m}_{4}\times {V}_{3}}{{m}_{0}\times (1-{\omega }_{\text{s}})\times {V}_{4}}\times 100\%$
式中: ω1为样品中水浸出物含量的数值, %; m4为样品中水溶性浸出物质量的数值, g; V3为样品加浸提液体积的数值, mL; m0为样品质量的数值, g; ωs为样品水分含量的数值, %; V4为样品量取滤液体积的数值, mL; 100是单位换算系数。
按公式(4)计算总糖含量:
${\omega }_{3}=\frac{G\times A\times 250}{{V}_{5}\times W\times 1000}\times 100$
式中: ω3为可解性总糖含量, g/100 g; W为样品称重, g; G为10 mL费林试剂相当的转换糖, mg; V5为准确滴定时所用待测液体积, mL; A为稀释倍数; 250为定容体积, mL; 1000和100是单位换算系数。
按公式(5)计算维生素含量:
$T=\frac{C\times V}{{V}_{7}-{V}_{6}}$
式中: T为每毫升2,6-二氯靛酚溶液相当于抗坏血酸的毫克数, mg/mL; C为抗坏血酸的质量浓度, mg/mL; V为吸取抗坏血酸的体积, mL; V6为滴定抗坏血酸溶液所用2,6-二氯靛酚溶液的体积, mL; V7为滴定空白所用2,6-二氯靛酚溶液的体积, mL。
维生素C按式(6)计算:
${\omega }_{4}=\frac{({V}_{9}-{V}_{8})\times T\times A}{W}\times 100$
式中: ω4为维生素C, mg/100 g; V9为滴定样液时消耗染料溶液的体积, mL; V8为滴定空白时消耗染料溶液的体积, mL; T为2,6-二氯靛酚染料滴定度, mg/mL; A为稀释倍数; W为样品重量, g; 100是单位换算系数。
平行测定的结果, 用算术平均值表示, 取3位有效数字。平行测定结果的相对相差不得超过2%。
本研究采用WPS 2024工作表进行数据的归纳与整理, 单个样本进行3次平行检测, 且单次检测实验进行两次重复(HPLC、滴定检测), 以确保数据的可靠性。使用Z-score标准化处理数据后, 利用SPSS 27.0和Origin 2024软件通过Pearson相关性分析、PCA、HCA等手段分析数据并绘图整理。
根据TANG等[15]和PENG等[16]的研究结果可知, 野生罗汉果的多样性要高于人工栽培的罗汉果, 但也有例外, 周俊亚等[17]的研究证明在人工栽培的罗汉果品种中也存在部分罗汉果种类与其他亲缘差异较大。所以从亲缘关系的角度来说, 罗汉果样品的各项指标可能存在一定的变异性, 但总体来说大部分指标的数值较为集中, 后续的数据也体现了这一点。
通过上述实验可以得到罗汉果的基本品质指标数据, 详见表1
表1展示了18种罗汉果的5个基本品质指标的数据, 运用SPSS 27.0进行分析得到表2, 展示了18种罗汉果的5个基本品质指标数据的描述性统计结果, 其中罗汉果皂苷V的数据还来源于表3
表1表2所示, 各指标变异系数的变化区间是5.28%~35.38%, 差异明显。其中, 变异系数最大的指标是维生素C, 为35.38%, 品种间差异性显著: 最大值(青皮3号, 332.00 mg/100 g)是最小值(白毛果, 35.20 mg/100 g)的9倍多, 极差高达296.80 mg/100 g。总糖和罗汉果皂苷V的变异系数次之, 分别为26.91%、23.44%, 表明这两项指标在不同品种间存在较大差异。相比之下, 水浸出物变异系数较小(11.83%), 水分变异系数则最小(5.28%), 说明不同品种中这两项指标差异很小。
偏度分析显示, 罗汉果皂苷V呈现正偏度(偏度值>1, 中等偏度), 说明罗汉果皂苷V的高含量品种偏多。而维生素C则呈现负偏度(偏度值<-1, 中等偏度), 这提示维生素C低含量品种更普遍。其余指标: 水浸出物、总糖、水分均呈现较低偏度值, 处在-1到0之间, 属于轻微偏斜。
罗汉果皂苷V是罗汉果最重要的甜度成分, 其甜度是葡萄糖的400倍以上[18], 可对血糖的调节发挥重要作用。刘灿等[19]的研究证明罗汉果皂苷作为甜味剂, 可减少葡萄糖的摄取, MURATA等[20]也指出罗汉果皂苷对降血糖的部分作用机制。根据SINGH等[21]和WEERAWATANAKORN等[22]的研究, 罗汉果具有抑制癌症和肿瘤细胞的能力, 其中所含罗汉果皂苷V起到重要作用[23]。综上可看出罗汉果皂苷V具有很大的经济和研究价值[24]
故而对罗汉果皂苷V这一重要成分的检测数据进行补充, 以提高数据分析的准确性, 表3是补充的来源于不同市场批次产品中罗汉果皂苷V含量的结果, 旨在通过增强样本随机性以阐明该成分的普遍分布规律。由此数据可得到关于罗汉果皂苷V成分的频率分布直方图(图1)。
通过表2表3图1可以对罗汉果皂苷V含量进行分析。罗汉果皂苷V的分布峰度为3.642, 属于高峰度, 分布较正态分布要陡峭。根据图1进行高斯拟合可得分布曲线方程:
y=y0+(A/(w×sqrt(pi/2)))×exp(-2×((x-xc)/w)^2)
其中, y0=0.85553±0.70254, xc=0.97152±0.01169, w=0.29105±0.02645, A=8.5456±0.80577。该拟合曲线近似正态分布, xc表示罗汉果皂苷含量分布的中心位置, 较大的A值意味着在中心位置附近有较高的含量频率, 即大多数罗汉果样本的罗汉果皂苷V含量集中在xc这个值附近, 可能代表了罗汉果在生长过程中对皂苷合成的某种最常见的条件。较小的w值表明罗汉果皂苷含量在样本中的分布较为集中, 误差范围较小, 说明中心位置较为确定, 生长环境基因等对数值影响可能较小。根据变异系数和该拟合可知, 罗汉果皂苷V在不同种类罗汉果中, 虽然分布存在一定差异, 但是较为集中, 极端值较少, 这说明市面上的罗汉果产品中, 大部分罗汉果皂苷V的含量水平差距不大, 存在小部分罗汉果的皂苷V含量偏大或者偏小, 有待进一步研究分析其原因。
在本研究的样本中, 大叶青皮的罗汉果皂苷V含量最高, 达到1.83 g/100 g, LHG-09的含量最低, 只有0.58 g/100 g, 前者是后者含量的3倍多, 由于罗汉果皂苷V是衡量罗汉果品质、经济等价值的核心指标, 这种巨大的差异会导致罗汉果的价值相差巨大。但是根据上述分析, 绝大多数罗汉果的皂苷V含量处于0.8~1.2 g/100 g之间, 有21个样本, 占总样本量的67.74%。而处于0.9~1.1 g/100 g之间的样本有15个, 占总样本数的48.39%。即在这些样本中, 接近半数的罗汉果皂苷V含量接近1 g/100 g。可以看出虽然绝大多数的罗汉果品种罗汉果皂苷V的含量差异不明显, 符合上述拟合展示的分布规律, 推测罗汉果皂苷V合成路径中依赖的关键酶在不同种类的罗汉果中活性较为稳定, 且该合成受环境因素影响较小。但部分品种的含量值有明显偏离, 例如大叶青皮、农院B6、杂交红毛以及编号LHG-05的品种含量超过1.2 g/100 g, LHG-09、杂交白毛、青皮BP、野生红毛等罗汉果品种, 罗汉果皂苷V含量低, 不足0.8 g/100 g, 这可能是因为部分品种的皂苷合成通路关键酶基因表达上有差异, 或可能存在购买的罗汉果生长阶段经历特殊环境, 如昼夜温差大、病虫害危害等。
罗汉果中的成分含量与其食用和药用的应用品质密切相关。本研究对检验结果进行相关性的分析, 图2所展示的是使用Origin 2024分析制作的基于表1提供数据的Pearson相关性热图。
图2中可以看出, 多个参数之间存在一定的相关性, 图中参数存在统计学上显著(P<0.05), 或者极显著(P<0.01)的相关性。
在测试的组分含量中, 通过Pearson相关性系数分析, 总糖与水浸出物呈现出极显著的正相关(P<0.01), 这可能意味着水浸出物中含有大量的糖类成分, 与植物水溶性成分的理化特性一致, 揭示总糖可能是水浸出物的主要构成物质, 可以指导品种选育, 即通过提高果实总糖含量可能有效提升其浸出物得率。
罗汉果皂苷V与水浸出物的含量呈现出显著正相关(P<0.05), 这可能意味着罗汉果皂苷V的含量在水浸出物中占据较大的部分[25]。水分和水浸出物的含量呈现出显著负相关(P<0.05), 可能表明水分较多的果实不利于可溶性组分传递出去。
维生素C和水浸出物含量呈现出一定的正相关趋势, 说明维生素C的含量可能与某些浸出物的含量在果实中的形成有一定的正相关性, 但是并没有呈现出统计学的显著或者极显著, 可能是维生素含量变化在水浸出物含量变化中占比不大导致的, 这与理化指标的结果相符合。
罗汉果皂苷V和总糖同样呈现出统计学上显著相关性, 考虑到罗汉果皂苷的生物合成需要糖基供体, 可以推测罗汉果体内皂苷的生物合成途径可能与生物体内糖的合成代谢存在关联[26]
水分含量除却与水浸出物含量存在负相关外, 与其他组分的含量无明显相关性, 说明水分含量与其他成分关联性不大。故而在罗汉果种植中可通过灌溉调控等农艺措施优化含水量, 而不显著影响其他有效成分的积累。
PCA可用来对多维度指标降维, 获得具有一些复杂关系的因子, 以因子描述样品的差异[27]。对18种不同种类的罗汉果的罗汉果皂苷V、水浸出物、总糖、维生素C、水分这5个指标, 进行PCA, 依据方差贡献率的权重, 得到3个权重不同的主成分PC1、PC2、PC3, 载荷系数展示了不同指标对主成分的影响程度。表4图3是PCA的结果[28]
这3个主成分的累计贡献率达到91.13%, 如图3所标注, PC1的贡献率最大, 达到53.4%, 结合表4的数据可以看出, 主要是水浸出物、总糖、罗汉果皂苷V这3个成分的含量, 载荷值分别为0.584、0.569、0.392, 说明主成分1对罗汉果品质的影响最大, 主要由水浸出物、总糖、罗汉果皂苷V的含量决定。由相关性分析(图2)可知, 总糖和水浸出物的含量显现出极显著的正相关, 所以可以称主成分1为浸出因子。
观察主成分2的载荷可以看出, 其主要由水分、维生素、罗汉果皂苷V的含量组成, 载荷值依次为0.773、0.446、0.432, 其中水分含量载荷远超其他两个指标, 故而可以称其为水分因子。主成分3的罗汉果皂苷V载荷为0.580, 其数值较大, 且主成分3的维生素C载荷为-0.796, 对这个因子影响最大, 因此同理可称其为维生素因子。
纵观3个主成分, 均受罗汉果皂苷V的含量影响较大, 说明罗汉果皂苷V是影响罗汉果品质最重要的因素之一。计算5个指标的主成分得分得出3个主成分的表达式如下:
F1=0.240X1+0.358X2+0.348X3+0.191X4-0.177X5
F2=0.412X1-0.120X2-0.018X3+0.425X4+0.736X5
F3=0.655X1-0.002X2+0.120X3-0.897X4+0.154X5
式中: F1为浸出因子, F2为水分因子, F3为维生素因子。X1X2X3X4X5为罗汉果皂苷Ⅴ、水浸出物、总糖、维生素C、水分。
在PCA的基础上, 以3个主成分以方差贡献率作为权重依据, 与各组分的得分相乘并求和, 得到关于罗汉果的综合得分函数:
F=0.586F1+0.242F2+0.173F3
F越大则说明该罗汉果的综合品质越高, 可以根据这个公式得到表5, 反映出18种罗汉果的得分水平。通过表5可知, 综合得分排名较高的依次是: 大叶青皮、农院B6、青皮4号、青皮3号、杂交红毛, 这几个品种的罗汉果的综合质量更高, 综合得分排名较低的依次是: 野生红毛、白毛果、青皮BP、农家青皮、长滩果, 这几个品种的罗汉果的综合质量更差。结合PCA和2.1中的罗汉果基本参数描述性分析可知, 罗汉果皂苷V、总糖的含量对该排名影响较大, 这两个指标高的罗汉果往往拥有更高的综合评分, 反之评分更低。罗汉果皂苷V在PC3载荷最高(0.580), 且PC1、PC2载荷均为正(见表4), 表明其显著影响3个主成分, 由于PC1(浸出因子)和PC3(维生素因子)的累计贡献率超69%, 罗汉果皂苷V通过高载荷主导了这些主成分, 进而显著提升综合得分。
观察图3可以发现, 不同品种的罗汉果样品分布趋势明显, 同时也能描绘出不同样品与各个理化指标之间的关联性。各样本在图中展现一定的区分度, 散点分布在不同的空间中, 且均处于95%的置信区间内。从图3中可以看出总糖、水浸出物、维生素C之间含有一定的相关性, 而罗汉果皂苷V和水分则相对独立, 其中总糖和水浸出物的关系最为密切, 这也对应着3个主成分的选择和不同原始指标的关系。可以看出16、13、9号样品距离各项指标距离远, 对应的白毛果、野生红毛、青皮BD综合得分低, 各项因子也都较差。而5、11、15号样品在图中较为集中, 且分布在主成分因子的正方向, 对应的青皮4号、杂交伯林、杂交红毛得分也较为靠前且排名差距不大。
表5的基础上, 进行HCA, 使用Q型聚类对18个不同种类的罗汉果样本进行聚类, 方法是瓦尔德法, 类型是系统聚类, 采用平方欧式距离进行度量, 聚类结果如图4所示[29-32]
图4可知, 在平方欧氏距离等于11.5时, 为类间差异的临界跳跃点, 符合PCA得分结果, 可将不同种类的罗汉果按照品质差异分成4大类: 第Ⅰ类包括2种罗汉果, 分别为农院B6、大叶青皮, 得分分别为0.786、1.435, 平均得分为1.111, 品质最好; 第Ⅱ类包括4种罗汉果, 分别为青皮3号、青皮4号、红毛2号、杂交红毛, 得分最大值为0.703, 最小值为0.162, 平均得分为0.459, 品质良好; 第Ⅲ类包括8种罗汉果, 分别为永青1号、农家红毛、青皮BP、长滩果、伯林3号、青皮ND、杂交伯林、杂交白毛、农家青皮。该类罗汉果的得分最大值为0.316, 最小值为-0.735, 得分大部分都为负值, 平均得分-0.237, 品质一般; 第Ⅳ类包括3种罗汉果, 分别为青皮BD、野生红毛、白毛果, 得分分别为0.085、-1.254、-0.759, 平均得分为-0.643, 品质最差。
本研究采用HPLC等方法, 对罗汉果中的罗汉果皂苷V、总糖、水浸出物、维生素C和水分等成分含量进行了测定, 并运用多元统计方法对不同品种罗汉果的组分含量特征进行了深入分析。
研究结果显示, 不同品种罗汉果的罗汉果皂苷V、水浸出物、总糖、维生素C和水分等成分含量存在一定差异且具有相关性, 其变异系数介于5.28%至35.38%之间。通过对罗汉果皂苷V含量的分析发现, 不同品种间其含量变化较大。依据所测得的数据, 绘制了31个样本的罗汉果皂苷V频率分布直方图, 并对其非线性回归关系进行了分析。分析结果表明, 罗汉果皂苷V在不同种类罗汉果中的分布存在显著差异, 但整体数据较为集中, 极端值较少。
在进行PCA后, 提取出3个主成分, 分别为浸出因子、水分因子和维生素因子。这3个因子能够全面代表原始的5种指标。其载荷结果也进一步证实了罗汉果皂苷V在罗汉果分类中的重要意义, 罗汉果皂苷V的含量可以作为评价罗汉果品质的一个重要指标。
此外, 本研究结合PCA的得分结果, 对18种罗汉果进行了HCA, 将其分成了4大类。聚类结果与PCA综合得分排名结果相似, 这说明得分函数和分类结果可以比较准确地对罗汉果这5个重要维度的理化指标进行客观的分析评价。第Ⅰ类罗汉果主要表现为罗汉果皂苷V含量极高, 这类罗汉果甜度高且主要成分罗汉果皂苷V含量高, 无论是食用、泡用还是提取罗汉果皂苷V, 都是较好的选择; 第Ⅱ类罗汉果主要表现为总糖和水浸出物含量高, 浸出因子较大, 这些罗汉果总糖含量高, 口感上甜味层次可能更加丰富, 但在控制血糖的健康因素方面相对较差; 第Ⅲ类罗汉果数量最多, 其各项指标比较均衡, 但罗汉果皂苷V含量并不突出, 是市面上占比最大的罗汉果类型; 第Ⅳ类罗汉果各项指标均存在严重偏低的情况, 属于品质较差的罗汉果, 其口感和营养价值较差, 可能有以下原因: 野生品种未经过人工选育存在遗传背景缺陷, 相关成分合成通路受阻; 抗逆基因缺失无法抵御复杂的环境; 染色体倍型异常, 存在三倍体杂交紊乱现象。
本研究为罗汉果的分类和品质评价提供了新的视角, 相较于相关研究, 本研究构建了相关性参考-PCA降维评价-HCA的链式分析框架, 使聚类距离更可靠地反映本质差异, 对于罗汉果的育种、种植管理和产品开发具有一定的参考意义, 并且为相关领域[12,29,32]的进一步研究奠定了基础。
  • 广西卫健委项目(桂地标食20182006号)
  • 南宁市场局项目(2018-0329)
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2025年第16卷第14期
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doi: 10.19812/j.cnki.jfsq11-5956/ts.20250429001
  • 接收时间:2025-04-29
  • 首发时间:2026-01-07
  • 出版时间:2025-07-25
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  • 收稿日期:2025-04-29
基金
广西卫健委项目(桂地标食20182006号)
南宁市场局项目(2018-0329)
作者信息
    1 广西民族大学化学化工学院, 南宁 530006
    2 广西壮族自治区生态环境监测中心, 南宁 530028
    3 广西壮族自治区食品药品审评查验中心, 南宁 530029
    4 广西壮族自治区人民医院, 南宁 530022

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*韦莹莹(1979—), 女, 硕士, 工程师, 主要研究方向为化妆品药品质量安全。E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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