Article(id=1320884310807262110, tenantId=1146029695717560320, journalId=1260987677001138203, issueId=1320883558764359808, articleNumber=null, orderNo=null, doi=10.13386/j.issn1002-0306.2025050108, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1747152000000, receivedDateStr=2025-05-14, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1792852960539, onlineDateStr=2026-10-24, pubDate=1776182400000, pubDateStr=2026-04-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792852960539, onlineIssueDateStr=2026-10-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792852960539, creator=13701087609, updateTime=1792852960539, updator=13701087609, issue=Issue{id=1320883558764359808, tenantId=1146029695717560320, journalId=1260987677001138203, year='2026', volume='47', issue='8', pageStart='1', pageEnd='524', issueExtLink='null', onlineDate='null', pubDate='1776182400000', pubDateStr='2026-04-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792852781239, creator='13701087609', updateTime=1792852781239, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=324, endPage=332, ext={EN=ArticleExt(id=1320884311008588703, articleId=1320884310807262110, tenantId=1146029695717560320, journalId=1260987677001138203, language=EN, title=Quality Analysis and Comprehensive Evaluation of Guizhou Export Black Tea, columnId=1261343843585241413, journalTitle=Science and Technology of Food Industry, columnName=Analysis and Determination, runingTitle=null, highlight=null, articleAbstract=
To evaluate the quality of Guizhou export black tea and establish a comprehensive quality evaluation system, this study analyzed 21 Guizhou export black tea samples based on sensory evaluation and physical and chemical index determinations. Core indicators were identified through correlation, principal component, and cluster analyses. The entropy weight method was then used to determine their values and weights, ultimately constructing a quality evaluation system for export black tea. Results revealed that Guizhou export black tea had certain distinctive sensory characteristics. Specifically, Congou Black Tea was found to be characterized by its sweet and mellow taste with a flowery and fruity aroma, whereas Broken Black Tea had a distinct heavy and mellow flavor accompanied by bright red liquor. Based on analyses, this study obtained average values of 6.20%, 5.71%, 63.63%, and 37.33% for the moisture content, total ash, water-soluble ash ratio, and water extract of export black teas, respectively, all of which comply with both domestic and international standards. However, at 8.45%, the mean tea polyphenols content determined in this study falls below the standard limit of 9%. Moreover, strong correlations were detected between the physical and chemical indicators, and based on principal component analysis, three major components were identified with a cumulative variance contribution of 70.686%. In addition, six core quality indicators were screened out, tea polyphenols, theaflavins, water-soluble ash ratio, moisture content, water extract, and total ash, among which, water-soluble ash ratio (22.078%), moisture content (19.267%), and total ash (18.428%) emerged as key factors determining the quality of Guizhou export black tea. This comprehensive evaluation enabled the establishment that Guizhou Congou Black Tea had a significantly better quality compared to Brocken Black Tea. Consistent with the results of sensory evaluation, the following quality ranking for the different tea types was obtained: Spiral (CS)>long-shape (CL)>curly (CC)>fanning (BF)>broken (BB). These findings will provide a scientific reference for the quality control of export black tea in Guizhou.
, authors=Qinfei SONG
1, Minglu ZHANG
2, Wei ZHAO
1, Juhua ZHUANG
1, Suzhen NIU
3, *, authorsList=Qinfei SONG, Minglu ZHANG, Wei ZHAO, Juhua ZHUANG, Suzhen NIU, authorCompany=null, correspAuthors=Suzhen NIU, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright © 2026 Science and Technology of Food Industry. All rights reserved., 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, fund=null), CN=ArticleExt(id=1320884312073941926, articleId=1320884310807262110, tenantId=1146029695717560320, journalId=1260987677001138203, language=CN, title=贵州出口红茶品质分析及综合评价, columnId=1261343846139572559, journalTitle=食品工业科技, columnName=分析检测, runingTitle=null, highlight=null, articleAbstract=
为客观评价贵州出口红茶品质,建立出口红茶质量评价体系,本研究以21款贵州出口红茶为材料,通过感官审评及理化指标检测明确其品质,结合相关分析、主成分分析和聚类分析筛选核心指标,采用熵权法确定熵值和权重,构建出口红茶质量评价体系。结果显示:贵州出口红茶感官各具特色,工夫红茶甜醇,显花果香;红碎茶浓醇,汤色红亮。出口红茶水分含量、总灰分、水溶性灰分占比及水浸出物含量均值分别为6.20%、5.71%、63.63%和37.33%,符合国内外标准;但茶多酚含量均值为8.45%,低于9%的标准限值。各理化指标间具有较强相关性;主成分分析提取出3个主成分,累计方差贡献率达到70.686%;筛选出茶多酚、茶褐素、水溶性灰分占比、水分含量、水浸出物、总灰分共6项核心指标,其中水溶性灰分占比、水分含量和总灰分权重值分别为22.078%、19.267%和18.428%,是影响贵州出口红茶质量的关键因子。综合评价表明贵州出口工夫红茶品质显著优于红碎茶,各类型质量排序为盘花型(CS)>条型(CL)>卷曲型(CC)>片茶(BF)>碎茶(BB),与感官审评结果一致,本研究为贵州出口红茶品质控制提供科学参考。
, authors=宋勤飞
1, 张明露
2, 赵伟
1, 庄菊花
1, 牛素贞
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Correlation heat map of physical and chemical indicators in Guizhou export black, figureFileSmall=GDREsx538GyxFDOCYwMASQ==, figureFileBig=jAkNJ2tD9lCzOnRHhGRkWA==, tableContent=null), ArticleFig(id=1320884315974644692, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=CN, label=图1, caption=
贵州出口红茶理化指标相关性热图注:“*”、“**”分别表示相关性达到显著(P<0.05)和极显著(P<0.01)水平。
, figureFileSmall=GDREsx538GyxFDOCYwMASQ==, figureFileBig=jAkNJ2tD9lCzOnRHhGRkWA==, tableContent=null), ArticleFig(id=1320884316150805461, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=EN, label=Fig.2, caption=
PCA score of Guizhou export black tea, figureFileSmall=TN6p5W92KQfE/n1zJiNqlQ==, figureFileBig=jVAxu6j++T0wTzDVIRUGJw==, tableContent=null), ArticleFig(id=1320884316209525718, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=CN, label=图2, caption=
贵州出口红茶 PCA 得分, figureFileSmall=TN6p5W92KQfE/n1zJiNqlQ==, figureFileBig=jVAxu6j++T0wTzDVIRUGJw==, tableContent=null), ArticleFig(id=1320884316268245975, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=EN, label=Fig.3, caption=
Systematic clustering of physicochemical indexes in Guizhou export black tea, figureFileSmall=i/tM22jPcOOWB/MaQkVJfg==, figureFileBig=iHTs2eMXw//r1lnpUPEN/A==, tableContent=null), ArticleFig(id=1320884316339549144, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=CN, label=图3, caption=
贵州出口红茶理化指标系统聚类谱系, figureFileSmall=i/tM22jPcOOWB/MaQkVJfg==, figureFileBig=iHTs2eMXw//r1lnpUPEN/A==, tableContent=null), ArticleFig(id=1320884316398269401, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=EN, label=Table 1, caption=
Information of test materials
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 编号 | 名称 | 来源 | | 序号 | 编号 | 名称 | 来源 |
|---|
| 1 | CC1 | 普安红 | 贵州习普生物科技有限公司 | | 12 | CS3 | 红宝石特级 | 贵州铜仁贵茶茶业股份有限公司 |
| 2 | CC2 | 普安红 | 贵州习普生物科技有限公司 | | 13 | CS4 | 红宝石一级 | 贵州铜仁贵茶茶业股份有限公司 |
| 3 | CC3 | − | 遵义七味茗香茶叶进出口有限公司 | | 14 | CS5 | 红宝石 | 贵州铜仁贵茶茶业股份有限公司 |
| 4 | CC4 | − | 贵州梵锦茶业有限公司 | | 15 | BB1 | 颗粒红茶1号 | 遵义七味茗香茶叶进出口有限公司 |
| 5 | CC5 | − | 贵州梵锦茶业有限公司 | | 16 | BB2 | 颗粒红茶2号 | 遵义七味茗香茶叶进出口有限公司 |
| 6 | CL1 | − | 贵州习普生物科技有限公司 | | 17 | BB3 | 颗粒红茶3号 | 遵义七味茗香茶叶进出口有限公司 |
| 7 | CL2 | 红毛峰 | 贵州习普生物科技有限公司 | | 18 | BF1 | 红片 | 贵州梵锦茶业有限公司 |
| 8 | CL3 | 普安红 | 贵州习普生物科技有限公司 | | 19 | BF2 | 红片 | 贵州梵锦茶业有限公司 |
| 9 | CL4 | 条形 | 遵义七味茗香茶叶进出口有限公司 | | 20 | BF3 | 红片 | 贵州梵锦茶业有限公司 |
| 10 | CS1 | 红碧螺 | 贵州习普生物科技有限公司 | | 21 | BF4 | 红片 | 贵州梵锦茶业有限公司 |
| 11 | CS2 | 红宝石一级 | 贵州铜仁贵茶茶业股份有限公司 | | | | | |
), ArticleFig(id=1320884316465378266, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=CN, label=表1, caption=
供试材料信息表
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 编号 | 名称 | 来源 | | 序号 | 编号 | 名称 | 来源 |
|---|
| 1 | CC1 | 普安红 | 贵州习普生物科技有限公司 | | 12 | CS3 | 红宝石特级 | 贵州铜仁贵茶茶业股份有限公司 |
| 2 | CC2 | 普安红 | 贵州习普生物科技有限公司 | | 13 | CS4 | 红宝石一级 | 贵州铜仁贵茶茶业股份有限公司 |
| 3 | CC3 | − | 遵义七味茗香茶叶进出口有限公司 | | 14 | CS5 | 红宝石 | 贵州铜仁贵茶茶业股份有限公司 |
| 4 | CC4 | − | 贵州梵锦茶业有限公司 | | 15 | BB1 | 颗粒红茶1号 | 遵义七味茗香茶叶进出口有限公司 |
| 5 | CC5 | − | 贵州梵锦茶业有限公司 | | 16 | BB2 | 颗粒红茶2号 | 遵义七味茗香茶叶进出口有限公司 |
| 6 | CL1 | − | 贵州习普生物科技有限公司 | | 17 | BB3 | 颗粒红茶3号 | 遵义七味茗香茶叶进出口有限公司 |
| 7 | CL2 | 红毛峰 | 贵州习普生物科技有限公司 | | 18 | BF1 | 红片 | 贵州梵锦茶业有限公司 |
| 8 | CL3 | 普安红 | 贵州习普生物科技有限公司 | | 19 | BF2 | 红片 | 贵州梵锦茶业有限公司 |
| 9 | CL4 | 条形 | 遵义七味茗香茶叶进出口有限公司 | | 20 | BF3 | 红片 | 贵州梵锦茶业有限公司 |
| 10 | CS1 | 红碧螺 | 贵州习普生物科技有限公司 | | 21 | BF4 | 红片 | 贵州梵锦茶业有限公司 |
| 11 | CS2 | 红宝石一级 | 贵州铜仁贵茶茶业股份有限公司 | | | | | |
), ArticleFig(id=1320884316549264347, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=EN, label=Table 2, caption=
Sensory evaluation of Guizhou export black tea
, figureFileSmall=null, figureFileBig=null, tableContent=
| 类型 | 编号 | 外形 | 汤色 | 香气 | 滋味 | 叶底 | 得分 |
|---|
| CBT | CC1 | 条索较紧尚卷、乌泛棕较润、多毫(86) | 橙红亮(92) | 甜香花香、高长(94) | 甜尚醇、干涩(85) | 芽叶细嫩完整、褐红较亮、稍硬(85) | 88.20 |
| CC2 | 条较细较弯、乌润多毫、脱档(83) | 橙红明艳(92) | 甜香、略闷(82) | 苦、生涩(80) | 红黄带青张、较亮、较碎(82) | 82.65 |
| CC3 | 条较弯、乌润多毫 匀整(90) | 橙红、明亮 较艳(91) | 甜香、薯香(88) | 较甜醇(87) | 芽头较肥软、红棕较亮、较匀整(84) | 88.10 |
| CC4 | 条索较紧结较弯、较乌润、匀净(88) | 橙红较亮(87) | 甜香、有陈气(79) | 较醇、带甜(86) | 红棕较亮、较匀整、较硬(83) | 84.55 |
| CC5 | 梗叶粗老断碎、棕褐尚润(75) | 橙黄较亮(87) | 带酵气、酸(72) | 酸(78) | 红褐尚亮、断碎、硬(82) | 77.05 |
| CL1 | 条较紧结平伏、带梗 乌泛褐显毫(87) | 红褐较暗(80) | 陈气(73) | 较醇、带陈、带苦(82) | 红褐较硬、带青张、较亮、较匀整(81) | 80.70 |
| CL2 | 条索较紧结、乌泛棕较润、显毫(86) | 橙红尚亮(84) | 甜香、有烟气(83) | 甜尚醇、粗涩、带烟味(81) | 黄红带青褐较亮、短碎茎多、稍硬(80) | 82.95 |
| CL3 | 条较碎、带茎梗 乌较润显毫(83) | 红浓较亮(88) | 甜香、带火工香(87) | 甜醇、带酸、带陈(83) | 红褐尚亮、较硬、断碎(81) | 84.30 |
| CL4 | 短条、花杂欠润、较碎(80) | 橙红较亮(88) | 甜香、带烟味(81) | 较甜醇、略粗涩、带烟味(82) | 红褐尚亮,较硬、断碎(81) | 81.75 |
| CS1 | 盘花较紧结、乌褐润显毫、匀整(87) | 橙红较亮(87) | 焦糊气(75) | 尚醇带甜、略酸、较苦焦糊味(76) | 芽叶较软完整、黄褐泛青较亮、(84) | 80.40 |
| CS2 | 盘花较紧结、较乌润、有毫(90) | 橙红较亮(85) | 花蜜香(90) | 较醇和(86) | 芽叶完整、较红尚亮、有花青叶(83) | 87.60 |
| CS3 | 盘花重实较紧结、较乌、润、带毫(92) | 橙红亮(91) | 甜香带花香(92) | 较浓醇、有花蜜味(90) | 芽叶完整匀净、较红亮、有花青叶(83) | 90.40 |
| CS4 | 盘花较紧结、较乌润、有毫(89) | 橙红亮(91) | 甜香带花香(92) | 较浓尚醇、略苦(84) | 芽叶完整、棕红较亮、有花青叶(82) | 87.75 |
| CS5 | 盘花紧结、乌略泛褐、油润、匀(87) | 红泛褐青、欠亮(73) | 甜香、较平(87) | 较醇、酸、带苦、带陈(78) | 芽叶完整柔软,黄褐泛青,较亮(84) | 82.60 |
| BBT | BB1 | 颗粒状2~3 mm、黄棕土色(85) | 黄橙略浑(78) | 甜香、带淀粉味(84) | 香甜、较平、略粗(75) | 土黄较亮、匀齐(85) | 81.00 |
| BB2 | 颗粒状1 mm、黄棕土色(83) | 橙红、暗(75) | 带淀粉味、较平、略粗(82) | 醇和较厚、较甜,带粗带酸(82) | 土黄较亮、匀齐(85) | 81.80 |
| BB3 | 颗粒状0.1~0.2 mm、黄棕土色,较碎(80) | 橙红尚亮(81) | 清凉感、药香、酸甜韵(85) | 药香味、甜带涩(83) | 土黄较亮、较匀齐(83) | 82.80 |
| BF1 | 片状1~2 mm、棕尚亮(78) | 红略泛青、尚亮(80) | 青气(75) | 较醇、带青味(80) | 黄褐尚亮、尚匀齐(81) | 78.20 |
| BF2 | 片状2~3 mm、乌褐较亮(82) | 橙红较亮(85) | 青气(75) | 较浓强(84) | 黄褐尚亮、较匀齐(82) | 80.80 |
| BF3 | 片状2~3 mm、棕褐尚亮(80) | 红较亮(87) | 甜香、花香(89) | 较浓、醇正(85) | 黄褐尚亮,尚匀齐(80) | 84.90 |
| BF4 | 片状3~4 mm、乌褐较亮(82) | 红浓较亮(89) | 纯正、略带花香(84) | 较浓、醇和回甘(87) | 红褐较亮、尚匀齐(82) | 84.80 |
), ArticleFig(id=1320884316624761820, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=CN, label=表2, caption=
贵州出口红茶感官审评
, figureFileSmall=null, figureFileBig=null, tableContent=
| 类型 | 编号 | 外形 | 汤色 | 香气 | 滋味 | 叶底 | 得分 |
|---|
| CBT | CC1 | 条索较紧尚卷、乌泛棕较润、多毫(86) | 橙红亮(92) | 甜香花香、高长(94) | 甜尚醇、干涩(85) | 芽叶细嫩完整、褐红较亮、稍硬(85) | 88.20 |
| CC2 | 条较细较弯、乌润多毫、脱档(83) | 橙红明艳(92) | 甜香、略闷(82) | 苦、生涩(80) | 红黄带青张、较亮、较碎(82) | 82.65 |
| CC3 | 条较弯、乌润多毫 匀整(90) | 橙红、明亮 较艳(91) | 甜香、薯香(88) | 较甜醇(87) | 芽头较肥软、红棕较亮、较匀整(84) | 88.10 |
| CC4 | 条索较紧结较弯、较乌润、匀净(88) | 橙红较亮(87) | 甜香、有陈气(79) | 较醇、带甜(86) | 红棕较亮、较匀整、较硬(83) | 84.55 |
| CC5 | 梗叶粗老断碎、棕褐尚润(75) | 橙黄较亮(87) | 带酵气、酸(72) | 酸(78) | 红褐尚亮、断碎、硬(82) | 77.05 |
| CL1 | 条较紧结平伏、带梗 乌泛褐显毫(87) | 红褐较暗(80) | 陈气(73) | 较醇、带陈、带苦(82) | 红褐较硬、带青张、较亮、较匀整(81) | 80.70 |
| CL2 | 条索较紧结、乌泛棕较润、显毫(86) | 橙红尚亮(84) | 甜香、有烟气(83) | 甜尚醇、粗涩、带烟味(81) | 黄红带青褐较亮、短碎茎多、稍硬(80) | 82.95 |
| CL3 | 条较碎、带茎梗 乌较润显毫(83) | 红浓较亮(88) | 甜香、带火工香(87) | 甜醇、带酸、带陈(83) | 红褐尚亮、较硬、断碎(81) | 84.30 |
| CL4 | 短条、花杂欠润、较碎(80) | 橙红较亮(88) | 甜香、带烟味(81) | 较甜醇、略粗涩、带烟味(82) | 红褐尚亮,较硬、断碎(81) | 81.75 |
| CS1 | 盘花较紧结、乌褐润显毫、匀整(87) | 橙红较亮(87) | 焦糊气(75) | 尚醇带甜、略酸、较苦焦糊味(76) | 芽叶较软完整、黄褐泛青较亮、(84) | 80.40 |
| CS2 | 盘花较紧结、较乌润、有毫(90) | 橙红较亮(85) | 花蜜香(90) | 较醇和(86) | 芽叶完整、较红尚亮、有花青叶(83) | 87.60 |
| CS3 | 盘花重实较紧结、较乌、润、带毫(92) | 橙红亮(91) | 甜香带花香(92) | 较浓醇、有花蜜味(90) | 芽叶完整匀净、较红亮、有花青叶(83) | 90.40 |
| CS4 | 盘花较紧结、较乌润、有毫(89) | 橙红亮(91) | 甜香带花香(92) | 较浓尚醇、略苦(84) | 芽叶完整、棕红较亮、有花青叶(82) | 87.75 |
| CS5 | 盘花紧结、乌略泛褐、油润、匀(87) | 红泛褐青、欠亮(73) | 甜香、较平(87) | 较醇、酸、带苦、带陈(78) | 芽叶完整柔软,黄褐泛青,较亮(84) | 82.60 |
| BBT | BB1 | 颗粒状2~3 mm、黄棕土色(85) | 黄橙略浑(78) | 甜香、带淀粉味(84) | 香甜、较平、略粗(75) | 土黄较亮、匀齐(85) | 81.00 |
| BB2 | 颗粒状1 mm、黄棕土色(83) | 橙红、暗(75) | 带淀粉味、较平、略粗(82) | 醇和较厚、较甜,带粗带酸(82) | 土黄较亮、匀齐(85) | 81.80 |
| BB3 | 颗粒状0.1~0.2 mm、黄棕土色,较碎(80) | 橙红尚亮(81) | 清凉感、药香、酸甜韵(85) | 药香味、甜带涩(83) | 土黄较亮、较匀齐(83) | 82.80 |
| BF1 | 片状1~2 mm、棕尚亮(78) | 红略泛青、尚亮(80) | 青气(75) | 较醇、带青味(80) | 黄褐尚亮、尚匀齐(81) | 78.20 |
| BF2 | 片状2~3 mm、乌褐较亮(82) | 橙红较亮(85) | 青气(75) | 较浓强(84) | 黄褐尚亮、较匀齐(82) | 80.80 |
| BF3 | 片状2~3 mm、棕褐尚亮(80) | 红较亮(87) | 甜香、花香(89) | 较浓、醇正(85) | 黄褐尚亮,尚匀齐(80) | 84.90 |
| BF4 | 片状3~4 mm、乌褐较亮(82) | 红浓较亮(89) | 纯正、略带花香(84) | 较浓、醇和回甘(87) | 红褐较亮、尚匀齐(82) | 84.80 |
), ArticleFig(id=1320884316687676381, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=EN, label=Table 3, caption=
Contents of physical and chemical indexes in Guizhou export black tea
, figureFileSmall=null, figureFileBig=null, tableContent=
| 理化指标 | 出口红茶(BT) | | 出口工夫红茶(CBT) | | 出口红碎茶(BBT) |
|---|
| 变幅 | 均值 | 变异系 数(%) | | 变幅 | 均值 | 变异系 数(%) | | 变幅 | 均值 | 变异系 数(%) |
|---|
| 水分(%) | 4.11~8.04 | 6.29a | 14.90 | | 4.11~8.04 | 6.20a | 15.26 | | 5.41~7.89 | 6.47a | 14.92 |
| 总灰分(%) | 4.64~6.66 | 5.71ab | 9.67 | | 4.64~6.66 | 5.92a | 8.98 | | 4.86~5.85 | 5.31b | 6.59 |
| 水溶性灰分占比(%) | 46.81~77.35 | 63.63b | 14.58 | | 58.31~77.35 | 69.20a | 7.27 | | 46.81~55.97 | 52.49c | 7.29 |
| 水浸出物(%) | 26.53~43.55 | 37.33a | 13.18 | | 32.05~43.05 | 38.21a | 9.00 | | 26.53~43.55 | 35.57a | 19.80 |
| 茶多酚(%) | 4.43~17.37 | 8.45ab | 29.26 | | 6.26~17.37 | 9.68a | 35.48 | | 4.43~7.69 | 6.00b | 20.39 |
| 可溶性糖(%) | 1.75~3.74 | 2.64a | 39.71 | | 1.75~3.61 | 2.48a | 24.19 | | 2.4~3.74 | 2.96a | 13.81 |
| 咖啡碱(%) | 1.20~4.57 | 3.26a | 22.08 | | 2.75~4.57 | 3.80a | 12.10 | | 1.2~3.26 | 2.18b | 33.15 |
| 氨基酸(%) | 2.71~4.65 | 3.48a | 16.13 | | 2.84~4.65 | 3.59a | 16.21 | | 2.71~3.88 | 3.25a | 14.63 |
| 茶黄素(%) | 0.16~0.45 | 0.30ab | 23.37 | | 0.16~0.45 | 0.33a | 22.86 | | 0.21~0.3 | 0.26b | 13.15 |
| 茶红素(%) | 2.73~5.82 | 4.06a | 18.77 | | 3.29~5.82 | 4.27a | 15.07 | | 2.73~4.68 | 3.62a | 23.09 |
| 茶褐素(%) | 5.27~14.16 | 8.66ab | 26.50 | | 5.27~14.16 | 9.40a | 26.14 | | 6.18~8.29 | 7.20b | 11.90 |
), ArticleFig(id=1320884318348620766, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=CN, label=表3, caption=
贵州出口红茶理化指标含量
, figureFileSmall=null, figureFileBig=null, tableContent=
| 理化指标 | 出口红茶(BT) | | 出口工夫红茶(CBT) | | 出口红碎茶(BBT) |
|---|
| 变幅 | 均值 | 变异系 数(%) | | 变幅 | 均值 | 变异系 数(%) | | 变幅 | 均值 | 变异系 数(%) |
|---|
| 水分(%) | 4.11~8.04 | 6.29a | 14.90 | | 4.11~8.04 | 6.20a | 15.26 | | 5.41~7.89 | 6.47a | 14.92 |
| 总灰分(%) | 4.64~6.66 | 5.71ab | 9.67 | | 4.64~6.66 | 5.92a | 8.98 | | 4.86~5.85 | 5.31b | 6.59 |
| 水溶性灰分占比(%) | 46.81~77.35 | 63.63b | 14.58 | | 58.31~77.35 | 69.20a | 7.27 | | 46.81~55.97 | 52.49c | 7.29 |
| 水浸出物(%) | 26.53~43.55 | 37.33a | 13.18 | | 32.05~43.05 | 38.21a | 9.00 | | 26.53~43.55 | 35.57a | 19.80 |
| 茶多酚(%) | 4.43~17.37 | 8.45ab | 29.26 | | 6.26~17.37 | 9.68a | 35.48 | | 4.43~7.69 | 6.00b | 20.39 |
| 可溶性糖(%) | 1.75~3.74 | 2.64a | 39.71 | | 1.75~3.61 | 2.48a | 24.19 | | 2.4~3.74 | 2.96a | 13.81 |
| 咖啡碱(%) | 1.20~4.57 | 3.26a | 22.08 | | 2.75~4.57 | 3.80a | 12.10 | | 1.2~3.26 | 2.18b | 33.15 |
| 氨基酸(%) | 2.71~4.65 | 3.48a | 16.13 | | 2.84~4.65 | 3.59a | 16.21 | | 2.71~3.88 | 3.25a | 14.63 |
| 茶黄素(%) | 0.16~0.45 | 0.30ab | 23.37 | | 0.16~0.45 | 0.33a | 22.86 | | 0.21~0.3 | 0.26b | 13.15 |
| 茶红素(%) | 2.73~5.82 | 4.06a | 18.77 | | 3.29~5.82 | 4.27a | 15.07 | | 2.73~4.68 | 3.62a | 23.09 |
| 茶褐素(%) | 5.27~14.16 | 8.66ab | 26.50 | | 5.27~14.16 | 9.40a | 26.14 | | 6.18~8.29 | 7.20b | 11.90 |
), ArticleFig(id=1320884318428312543, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=EN, label=Table 4, caption=
Principal component analysis eigenvalues, variance contribution rate and cumulative variance contribution rate
, figureFileSmall=null, figureFileBig=null, tableContent=
| 主成分 | 特征值 | 方差贡献率(%) | 累积方差贡献率(%) |
|---|
| 1 | 4.496 | 40.869 | 40.869 |
| 2 | 1.935 | 17.589 | 58.458 |
| 3 | 1.345 | 12.228 | 70.686 |
| 4 | 0.831 | 7.555 | 78.241 |
| 5 | 0.672 | 6.107 | 84.348 |
| 6 | 0.496 | 4.511 | 88.859 |
| 7 | 0.397 | 3.607 | 92.467 |
| 8 | 0.366 | 3.325 | 95.792 |
| 9 | 0.283 | 2.576 | 98.368 |
| 10 | 0.102 | 0.928 | 99.296 |
| 11 | 0.077 | 0.704 | 100.000 |
), ArticleFig(id=1320884318499615712, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=CN, label=表4, caption=
特征值、方差贡献率及累积方差贡献率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 主成分 | 特征值 | 方差贡献率(%) | 累积方差贡献率(%) |
|---|
| 1 | 4.496 | 40.869 | 40.869 |
| 2 | 1.935 | 17.589 | 58.458 |
| 3 | 1.345 | 12.228 | 70.686 |
| 4 | 0.831 | 7.555 | 78.241 |
| 5 | 0.672 | 6.107 | 84.348 |
| 6 | 0.496 | 4.511 | 88.859 |
| 7 | 0.397 | 3.607 | 92.467 |
| 8 | 0.366 | 3.325 | 95.792 |
| 9 | 0.283 | 2.576 | 98.368 |
| 10 | 0.102 | 0.928 | 99.296 |
| 11 | 0.077 | 0.704 | 100.000 |
), ArticleFig(id=1320884318554141665, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=EN, label=Table 5, caption=
Load matrix of physical and chemical indicators
, figureFileSmall=null, figureFileBig=null, tableContent=
| 理化指标 | 主成分 |
|---|
| PC1 | PC2 | PC3 |
|---|
| 水分 | 0.120 | 0.606 | 0.266 |
| 总灰分 | 0.805 | −0.240 | −0.006 |
| 水溶性灰分占比 | 0.832 | 0.133 | −0.336 |
| 水浸出物 | 0.380 | 0.796 | 0.178 |
| 可溶性糖 | −0.165 | −0.304 | 0.854 |
| 咖啡碱 | 0.857 | 0.261 | −0.226 |
| 茶多酚 | 0.756 | 0.098 | 0.253 |
| 氨基酸 | 0.649 | −0.265 | 0.298 |
| 茶黄素 | 0.541 | −0.683 | 0.059 |
| 茶红素 | 0.638 | 0.223 | 0.392 |
| 茶褐素 | 0.732 | −0.331 | −0.202 |
), ArticleFig(id=1320884318625444834, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=CN, label=表5, caption=
理化指标因子载荷矩阵
, figureFileSmall=null, figureFileBig=null, tableContent=
| 理化指标 | 主成分 |
|---|
| PC1 | PC2 | PC3 |
|---|
| 水分 | 0.120 | 0.606 | 0.266 |
| 总灰分 | 0.805 | −0.240 | −0.006 |
| 水溶性灰分占比 | 0.832 | 0.133 | −0.336 |
| 水浸出物 | 0.380 | 0.796 | 0.178 |
| 可溶性糖 | −0.165 | −0.304 | 0.854 |
| 咖啡碱 | 0.857 | 0.261 | −0.226 |
| 茶多酚 | 0.756 | 0.098 | 0.253 |
| 氨基酸 | 0.649 | −0.265 | 0.298 |
| 茶黄素 | 0.541 | −0.683 | 0.059 |
| 茶红素 | 0.638 | 0.223 | 0.392 |
| 茶褐素 | 0.732 | −0.331 | −0.202 |
), ArticleFig(id=1320884318797411299, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=EN, label=Table 6, caption=
Standardization of core physical and chemical indexes in Guizhou export black tea
, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品编号 | 总灰分 | 水溶性灰分占比 | 水浸出物 | 水分 | 茶多酚 | 茶褐素 |
|---|
| CC1 | 0.758 | 0.566 | 0.630 | 0.395 | 0.453 | 0.512 |
| CC2 | 0.568 | 0.801 | 0.953 | 0.387 | 0.000 | 0.854 |
| CC3 | 0.507 | 0.830 | 0.723 | 0.376 | 0.241 | 0.417 |
| CC4 | 0.437 | 0.967 | 0.917 | 0.442 | 0.858 | 0.764 |
| CC5 | 0.000 | 0.377 | 0.971 | 0.391 | 0.797 | 1.000 |
| CL1 | 0.953 | 0.698 | 0.849 | 0.634 | 0.352 | 0.000 |
| CL2 | 1.000 | 0.713 | 0.541 | 0.346 | 0.465 | 0.480 |
| CL3 | 0.908 | 0.707 | 0.637 | 0.000 | 0.654 | 0.306 |
| CL4 | 0.747 | 0.519 | 0.460 | 1.000 | 0.791 | 0.384 |
| CS1 | 0.789 | 0.766 | 0.654 | 0.565 | 0.496 | 0.627 |
| CS2 | 0.448 | 0.809 | 0.883 | 0.419 | 0.822 | 0.626 |
| CS3 | 0.664 | 0.786 | 0.489 | 0.322 | 0.835 | 0.632 |
| CS4 | 0.436 | 0.725 | 0.580 | 0.853 | 0.777 | 0.765 |
| CS5 | 0.632 | 1.000 | 0.324 | 0.417 | 0.783 | 0.130 |
| BB1 | 0.110 | 0.105 | 0.000 | 0.617 | 0.990 | 0.897 |
| BB2 | 0.187 | 0.064 | 0.206 | 0.649 | 1.000 | 0.893 |
| BB3 | 0.448 | 0.000 | 0.188 | 0.669 | 0.913 | 0.835 |
| BF1 | 0.342 | 0.278 | 0.913 | 0.037 | 0.820 | 0.660 |
| BF2 | 0.207 | 0.288 | 0.923 | 0.228 | 0.870 | 0.723 |
| BF3 | 0.424 | 0.266 | 0.487 | 0.312 | 0.748 | 0.784 |
| BF4 | 0.596 | 0.300 | 1.000 | 0.286 | 0.809 | 0.687 |
), ArticleFig(id=1320884318889685988, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=CN, label=表6, caption=
贵州出口红茶核心理化指标数据标准化
, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品编号 | 总灰分 | 水溶性灰分占比 | 水浸出物 | 水分 | 茶多酚 | 茶褐素 |
|---|
| CC1 | 0.758 | 0.566 | 0.630 | 0.395 | 0.453 | 0.512 |
| CC2 | 0.568 | 0.801 | 0.953 | 0.387 | 0.000 | 0.854 |
| CC3 | 0.507 | 0.830 | 0.723 | 0.376 | 0.241 | 0.417 |
| CC4 | 0.437 | 0.967 | 0.917 | 0.442 | 0.858 | 0.764 |
| CC5 | 0.000 | 0.377 | 0.971 | 0.391 | 0.797 | 1.000 |
| CL1 | 0.953 | 0.698 | 0.849 | 0.634 | 0.352 | 0.000 |
| CL2 | 1.000 | 0.713 | 0.541 | 0.346 | 0.465 | 0.480 |
| CL3 | 0.908 | 0.707 | 0.637 | 0.000 | 0.654 | 0.306 |
| CL4 | 0.747 | 0.519 | 0.460 | 1.000 | 0.791 | 0.384 |
| CS1 | 0.789 | 0.766 | 0.654 | 0.565 | 0.496 | 0.627 |
| CS2 | 0.448 | 0.809 | 0.883 | 0.419 | 0.822 | 0.626 |
| CS3 | 0.664 | 0.786 | 0.489 | 0.322 | 0.835 | 0.632 |
| CS4 | 0.436 | 0.725 | 0.580 | 0.853 | 0.777 | 0.765 |
| CS5 | 0.632 | 1.000 | 0.324 | 0.417 | 0.783 | 0.130 |
| BB1 | 0.110 | 0.105 | 0.000 | 0.617 | 0.990 | 0.897 |
| BB2 | 0.187 | 0.064 | 0.206 | 0.649 | 1.000 | 0.893 |
| BB3 | 0.448 | 0.000 | 0.188 | 0.669 | 0.913 | 0.835 |
| BF1 | 0.342 | 0.278 | 0.913 | 0.037 | 0.820 | 0.660 |
| BF2 | 0.207 | 0.288 | 0.923 | 0.228 | 0.870 | 0.723 |
| BF3 | 0.424 | 0.266 | 0.487 | 0.312 | 0.748 | 0.784 |
| BF4 | 0.596 | 0.300 | 1.000 | 0.286 | 0.809 | 0.687 |
), ArticleFig(id=1320884318956794853, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=EN, label=Table 7, caption=
Information entropy, utility value and weight of core physical and chemical indexes in Guizhou export black tea
, figureFileSmall=null, figureFileBig=null, tableContent=
| 理化指标 | 出口红茶(BT) | | 出口工夫红茶(CBT) | | 出口红碎茶(BBT) |
|---|
信息 熵值 | 信息 效用值 | 权重(%) | | 信息 熵值 | 信息 效用值 | 权重(%) | | 信息 熵值 | 信息 效用值 | 权重(%) |
|---|
| 总灰分 | 0.950 | 0.050 | 18.428 | | 0.957 | 0.043 | 13.205 | | 0.837 | 0.163 | 17.843 |
| 水溶性灰分占比 | 0.940 | 0.060 | 22.078 | | 0.949 | 0.051 | 15.590 | | 0.862 | 0.138 | 15.044 |
| 水浸出物 | 0.958 | 0.042 | 15.301 | | 0.933 | 0.067 | 20.590 | | 0.833 | 0.167 | 18.225 |
| 水分 | 0.947 | 0.053 | 19.267 | | 0.946 | 0.054 | 16.706 | | 0.868 | 0.132 | 14.398 |
| 茶多酚 | 0.969 | 0.031 | 11.390 | | 0.951 | 0.049 | 15.142 | | 0.856 | 0.144 | 15.748 |
| 茶褐素 | 0.963 | 0.037 | 13.537 | | 0.939 | 0.061 | 18.767 | | 0.828 | 0.172 | 18.742 |
), ArticleFig(id=1320884319040680934, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=CN, label=表7, caption=
贵州出口红茶核心理化指标信息熵、信息效用值及权重
, figureFileSmall=null, figureFileBig=null, tableContent=
| 理化指标 | 出口红茶(BT) | | 出口工夫红茶(CBT) | | 出口红碎茶(BBT) |
|---|
信息 熵值 | 信息 效用值 | 权重(%) | | 信息 熵值 | 信息 效用值 | 权重(%) | | 信息 熵值 | 信息 效用值 | 权重(%) |
|---|
| 总灰分 | 0.950 | 0.050 | 18.428 | | 0.957 | 0.043 | 13.205 | | 0.837 | 0.163 | 17.843 |
| 水溶性灰分占比 | 0.940 | 0.060 | 22.078 | | 0.949 | 0.051 | 15.590 | | 0.862 | 0.138 | 15.044 |
| 水浸出物 | 0.958 | 0.042 | 15.301 | | 0.933 | 0.067 | 20.590 | | 0.833 | 0.167 | 18.225 |
| 水分 | 0.947 | 0.053 | 19.267 | | 0.946 | 0.054 | 16.706 | | 0.868 | 0.132 | 14.398 |
| 茶多酚 | 0.969 | 0.031 | 11.390 | | 0.951 | 0.049 | 15.142 | | 0.856 | 0.144 | 15.748 |
| 茶褐素 | 0.963 | 0.037 | 13.537 | | 0.939 | 0.061 | 18.767 | | 0.828 | 0.172 | 18.742 |
), ArticleFig(id=1320884319195870183, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=EN, label=Table 8, caption=
Scores and rankings of the comprehensive evaluation of the quality in Guizhou export black tea
, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 得分 | 排名 | 编号 | 得分 | 排名 | 编号 | 得分 | 排名 | 编号 | 得分 | 排名 | 编号 | 得分 | 排名 |
|---|
| CC1 | 0.56 | 12 | CL1 | 0.62 | 6 | CS1 | 0.66 | 3 | BB1 | 0.40 | 21 | BF1 | 0.45 | 19 |
| CC2 | 0.62 | 7 | CL2 | 0.61 | 9 | CS2 | 0.66 | 5 | BB2 | 0.44 | 20 | BF2 | 0.48 | 16 |
| CC3 | 0.54 | 13 | CL3 | 0.54 | 14 | CS3 | 0.61 | 8 | BB3 | 0.46 | 18 | BF3 | 0.46 | 17 |
| CC4 | 0.72 | 1 | CL4 | 0.66 | 4 | CS4 | 0.69 | 2 | | | | BF4 | 0.57 | 11 |
| CC5 | 0.53 | 15 | | | | | | | | | | | | |
| 均值 | 0.59a | | | 0.61a | | | 0.64a | | | 0.43b | | | 0.49b | |
| 变异系数(%) | 13.06 | | | 8.35 | | | 7.00 | | | 7.25 | | | 10.69 | |
), ArticleFig(id=1320884319262979048, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320884310807262110, language=CN, label=表8, caption=
贵州出口红茶品质综合评价得分及排名
, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 得分 | 排名 | 编号 | 得分 | 排名 | 编号 | 得分 | 排名 | 编号 | 得分 | 排名 | 编号 | 得分 | 排名 |
|---|
| CC1 | 0.56 | 12 | CL1 | 0.62 | 6 | CS1 | 0.66 | 3 | BB1 | 0.40 | 21 | BF1 | 0.45 | 19 |
| CC2 | 0.62 | 7 | CL2 | 0.61 | 9 | CS2 | 0.66 | 5 | BB2 | 0.44 | 20 | BF2 | 0.48 | 16 |
| CC3 | 0.54 | 13 | CL3 | 0.54 | 14 | CS3 | 0.61 | 8 | BB3 | 0.46 | 18 | BF3 | 0.46 | 17 |
| CC4 | 0.72 | 1 | CL4 | 0.66 | 4 | CS4 | 0.69 | 2 | | | | BF4 | 0.57 | 11 |
| CC5 | 0.53 | 15 | | | | | | | | | | | | |
| 均值 | 0.59a | | | 0.61a | | | 0.64a | | | 0.43b | | | 0.49b | |
| 变异系数(%) | 13.06 | | | 8.35 | | | 7.00 | | | 7.25 | | | 10.69 | |
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