Article(id=1193523098201850263, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1193523095437799732, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2024-0845, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1724947200000, receivedDateStr=2024-08-30, revisedDate=1733328000000, revisedDateStr=2024-12-05, acceptedDate=null, acceptedDateStr=null, onlineDate=1762487681197, onlineDateStr=2025-11-07, pubDate=1739289600000, pubDateStr=2025-02-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1762487681197, onlineIssueDateStr=2025-11-07, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1762487681197, creator=13701087609, updateTime=1762487681197, updator=13701087609, issue=Issue{id=1193523095437799732, tenantId=1146029695717560320, journalId=1189982191388893191, year='2025', volume='60', issue='2', pageStart='245', pageEnd='532', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1762487680538, creator=13701087609, updateTime=1764224912893, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1200809576107987438, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1193523095437799732, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1200809576107987439, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1193523095437799732, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=427, endPage=433, ext={EN=ArticleExt(id=1193523098424148376, articleId=1193523098201850263, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=Study on secondary metabolites of Penicillium expansum GY618 and their tyrosinase inhibitory activities, columnId=1190335348761793317, journalTitle=Acta Pharmaceutica Sinica, columnName=Original Articles, runingTitle=null, highlight=null, articleAbstract=

Twelve compounds were isolated from the rice fermentation extracts of Penicillium expansum GY618 by silica column chromatography, Sephadex gel column chromatography, ODS column chromatography and semi preparative HPLC methods. They were determined as 11-hydroxyl-penicitrinone F (1), penicitrinone F (2), betulin (3), erythrodiol (4), ergosterol (5), ergost-5α, 8α-epidioxy-6, 22-dien-3β-ol (6), (5α, 8α-epidioxy-(22E, 24R)-ergosta-6, 9(11), 22-trien-3β-ol) (7), 5α, 8α-epidioxy-(22E, 24R)-23-methylergosta-6, 22-dien-3β-ol (8), 5α, 8α-epidioxy- 23, 24(R)-dimethylcholesta-6, 9(11), 22-trien-3β-ol (9), dankasterone A (10), (17R)-4-hydroxy-17-methylincisterol (11) and ergosta-4, 6, 8(14), 22-tetraen-3-one (12), through mass spectrometer, nuclear magnetic resonance (NMR) and comparison with the literature. Compound 1 was a new compound and compounds 2-4, 6-12 were isolated from Penicillium expansum fungus for the first time. The tyrosinase inhibitory activity experiment showed that compounds 1, 3 and 12 showed certain inhibitory activity against tyrosinase with IC50 values of (75 ± 9), (69 ± 8) and (64 ± 2) μmol·L-1, respectively. The IC50 of other compounds were all greater than 100 μmol·L-1, while IC50 of the positive control kojic acid was (46 ± 4) μmol·L-1.

, correspAuthors=Hui-ling WEN, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2025 Acta Pharmaceutica Sinica. 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, authorCompany=null, fund=null, authors=null, authorsList=Fei-yu YIN, Sheng LIANG, Qian-heng ZHU, Feng-hua YUAN, Hao HUANG, Hui-ling WEN), CN=ArticleExt(id=1193523252258636664, articleId=1193523098201850263, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=扩展青霉Penicillium expansum GY618的次生代谢产物及抑制酪氨酸酶活性研究, columnId=1190335348896011050, journalTitle=药学学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=

采用硅胶柱层析、凝胶柱层析、反相硅胶柱层析和半制备高效液相等多种分离技术对扩展青霉Penicillium expansum GY618的大米固体发酵物进行分离纯化得到12个化合物。经高分辨质谱(HR-ESI-MS)、核磁共振波谱等技术, 结合与文献数据对比等方法, 鉴定为: 11-hydroxyl-penicitrinone F (1)、penicitrinone F (2)、白桦脂醇(3)、高根二醇(4)、麦角甾-5, 7, 22E-三烯-3β-醇(5)、(22E)-5α, 8α-表二氧麦角甾-6, 22-二烯-3β-醇(6)、(22E)-5α, 8α-表二氧麦角甾-6, 9, 22-三烯-3β-醇(7)、(22E, 24R)-5α, 8α-过氧化麦角甾-23-甲基-6, 22-二烯-3β-醇(8)、(22E, 24R)-5α, 8α-过氧化麦角甾-23-甲基-6, 9, 22-三烯-3β-醇(9)、dankasterone A (10)、(17R)-4-hydroxy-17-methylincisterol (11) 和麦角甾-4, 6, 8 (14), 22-四烯-3-酮(12)。化合物1为新化合物, 化合物2~46~12均首次从扩展青霉中分离得到。在酪氨酸酶抑制活性评价中, 化合物1312具有一定的抑制酪氨酸酶活性。化合物1的IC50值为75 ± 9 μmol·L-1, 化合物312的IC50值分别为69 ± 8和64 ± 2 μmol·L-1。其他化合物的IC50值均 > 100 μmol·L-1。曲酸作为阳性对照IC50值为46 ± 4 μmol·L-1

, correspAuthors=温慧玲, authorNote=null, correspAuthorsNote=
*温慧玲, E-mail:
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No.1
δHδC
1184.0
2151.0
3116.8
4187.7
5145.4
6141.7
72.11 (3H, s)12.9
81.92 (3H, s)8.4
92.90 (1H, qd, J = 7.2, 10.0 Hz)42.7
101.20 (3H, d, J = 7.2 Hz)16.2
114.20 (1H, qd, J = 6.1, 10.0 Hz)70.2
121.24 (3H, d, J = 6.1 Hz)22.8
), ArticleFig(id=1194709037053875130, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1193523098201850263, language=CN, label=Table 1, caption=

The 1H (400 MHz) and 13C (100 MHz) NMR data of compound 1 in CDCl3

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No.1
δHδC
1184.0
2151.0
3116.8
4187.7
5145.4
6141.7
72.11 (3H, s)12.9
81.92 (3H, s)8.4
92.90 (1H, qd, J = 7.2, 10.0 Hz)42.7
101.20 (3H, d, J = 7.2 Hz)16.2
114.20 (1H, qd, J = 6.1, 10.0 Hz)70.2
121.24 (3H, d, J = 6.1 Hz)22.8
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扩展青霉Penicillium expansum GY618的次生代谢产物及抑制酪氨酸酶活性研究
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尹飞宇 1 , 梁盛 2 , 朱前恒 3 , 袁丰华 2 , 黄浩 3 , 温慧玲 3, *
药学学报 | 研究论文 2025,60(2): 427-433
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药学学报 | 研究论文 2025, 60(2): 427-433
扩展青霉Penicillium expansum GY618的次生代谢产物及抑制酪氨酸酶活性研究
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尹飞宇1, 梁盛2, 朱前恒3, 袁丰华2, 黄浩3, 温慧玲3, *
作者信息
  • 1.赣南医科大学康复学院, 江西 赣州 341000
  • 2.赣南医科大学基础医学院, 江西 赣州 341000
  • 3.赣南医科大学药学院, 江西 赣州 341000

通讯作者:

*温慧玲, E-mail:
Study on secondary metabolites of Penicillium expansum GY618 and their tyrosinase inhibitory activities
Fei-yu YIN1, Sheng LIANG2, Qian-heng ZHU3, Feng-hua YUAN2, Hao HUANG3, Hui-ling WEN3, *
Affiliations
  • 1. School of Rehabilitation, Gannan Medical University, Ganzhou 341000, China
  • 2. School of Basic Medicine, Gannan Medical University, Ganzhou 341000, China
  • 3. School of Pharmacy, Gannan Medical University, Ganzhou 341000, China
出版时间: 2025-02-12 doi: 10.16438/j.0513-4870.2024-0845
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采用硅胶柱层析、凝胶柱层析、反相硅胶柱层析和半制备高效液相等多种分离技术对扩展青霉Penicillium expansum GY618的大米固体发酵物进行分离纯化得到12个化合物。经高分辨质谱(HR-ESI-MS)、核磁共振波谱等技术, 结合与文献数据对比等方法, 鉴定为: 11-hydroxyl-penicitrinone F (1)、penicitrinone F (2)、白桦脂醇(3)、高根二醇(4)、麦角甾-5, 7, 22E-三烯-3β-醇(5)、(22E)-5α, 8α-表二氧麦角甾-6, 22-二烯-3β-醇(6)、(22E)-5α, 8α-表二氧麦角甾-6, 9, 22-三烯-3β-醇(7)、(22E, 24R)-5α, 8α-过氧化麦角甾-23-甲基-6, 22-二烯-3β-醇(8)、(22E, 24R)-5α, 8α-过氧化麦角甾-23-甲基-6, 9, 22-三烯-3β-醇(9)、dankasterone A (10)、(17R)-4-hydroxy-17-methylincisterol (11) 和麦角甾-4, 6, 8 (14), 22-四烯-3-酮(12)。化合物1为新化合物, 化合物2~46~12均首次从扩展青霉中分离得到。在酪氨酸酶抑制活性评价中, 化合物1312具有一定的抑制酪氨酸酶活性。化合物1的IC50值为75 ± 9 μmol·L-1, 化合物312的IC50值分别为69 ± 8和64 ± 2 μmol·L-1。其他化合物的IC50值均 > 100 μmol·L-1。曲酸作为阳性对照IC50值为46 ± 4 μmol·L-1

扩展青霉  /  大米固体发酵  /  次生代谢产物  /  结构鉴定  /  酪氨酸酶抑制活性

Twelve compounds were isolated from the rice fermentation extracts of Penicillium expansum GY618 by silica column chromatography, Sephadex gel column chromatography, ODS column chromatography and semi preparative HPLC methods. They were determined as 11-hydroxyl-penicitrinone F (1), penicitrinone F (2), betulin (3), erythrodiol (4), ergosterol (5), ergost-5α, 8α-epidioxy-6, 22-dien-3β-ol (6), (5α, 8α-epidioxy-(22E, 24R)-ergosta-6, 9(11), 22-trien-3β-ol) (7), 5α, 8α-epidioxy-(22E, 24R)-23-methylergosta-6, 22-dien-3β-ol (8), 5α, 8α-epidioxy- 23, 24(R)-dimethylcholesta-6, 9(11), 22-trien-3β-ol (9), dankasterone A (10), (17R)-4-hydroxy-17-methylincisterol (11) and ergosta-4, 6, 8(14), 22-tetraen-3-one (12), through mass spectrometer, nuclear magnetic resonance (NMR) and comparison with the literature. Compound 1 was a new compound and compounds 2-4, 6-12 were isolated from Penicillium expansum fungus for the first time. The tyrosinase inhibitory activity experiment showed that compounds 1, 3 and 12 showed certain inhibitory activity against tyrosinase with IC50 values of (75 ± 9), (69 ± 8) and (64 ± 2) μmol·L-1, respectively. The IC50 of other compounds were all greater than 100 μmol·L-1, while IC50 of the positive control kojic acid was (46 ± 4) μmol·L-1.

Penicillium expansum  /  rice fermentation  /  secondary metabolite  /  structural identification  /  tyrosinase inhibitory activity
尹飞宇, 梁盛, 朱前恒, 袁丰华, 黄浩, 温慧玲. 扩展青霉Penicillium expansum GY618的次生代谢产物及抑制酪氨酸酶活性研究. 药学学报, 2025 , 60 (2) : 427 -433 . DOI: 10.16438/j.0513-4870.2024-0845
Fei-yu YIN, Sheng LIANG, Qian-heng ZHU, Feng-hua YUAN, Hao HUANG, Hui-ling WEN. Study on secondary metabolites of Penicillium expansum GY618 and their tyrosinase inhibitory activities[J]. Acta Pharmaceutica Sinica, 2025 , 60 (2) : 427 -433 . DOI: 10.16438/j.0513-4870.2024-0845
扩展青霉广泛存在于自然界中, 容易使植物致病, 污染采后水果蔬菜, 导致水果腐烂等, 关于扩展青霉的研究大部分为有关生物防治的研究[1-3]。近年来, 对扩展青霉(Penicillium expansum) 的化学成分也开展了一些研究。结果表明扩展青霉的主要代谢产物有球毛壳菌素[4]、生物碱[5-8]、聚酮[9]、倍半萜[10]和杂萜[9]等, 代谢产物丰富多样而且具有较好的活性, 引起化学、药学、生物学等相关研究领域的热切关注。
酪氨酸酶又称多酚氧化酶, 是一种含铜酶, 是黑色素合成过程中的关键限速酶, 参与黑色素合成, 与色素沉着障碍、癌症和神经退行性疾病密切相关[11]。当酪氨酸酶过量表达, 能促进黑色素生成的量过多, 引起人体皮肤色素沉着性疾病[12]。因此, 抑制酪氨酸酶活性, 可阻断黑色素合成反应链, 减少黑色素合成, 则达到美白肌肤的效果。基于此, 酪氨酸酶抑制剂也被用于护肤美白及色素沉着性疾病的治疗。同时, 酪氨酸酶能有效地将某些酚类物质氧化为醌类物质, 导致水果和蔬菜的切面褐变。因此, 酪氨酸酶抑制剂在医药、化妆品、食品工业等领域应用广泛。但是已知的酪氨酸酶抑制剂具有许多不良反应, 因此从天然产物中筛选开发无毒、长期稳定的新型酪氨酸酶抑制剂尤为重要。
本研究从扩展青霉的大米固体发酵物中分离鉴定得到12个化合物, 结构见图 1。其中化合物1为新化合物, 化合物2~46~12均首次从该菌种中分离得到。本研究对分离所得的12个化合物进行酪氨酸酶抑制活性的筛选, 化合物1312表现出一定的抑制酪氨酸酶活性, 其IC50值分别为75 ± 9、69 ± 8、64 ± 2 μmol·L-1。其他化合物的IC50值均大于100 μmol·L-1, 未表现出明显抑制酪氨酸酶的活性。
化合物1, 常温下为黄色油状。[α]$ {}_{\mathrm{D}}^{24} $ -5.6 (c 0.1, MeOH); UV (MeOH) λmax (logε) 245 (3.66) nm; 高分辨质谱给出准分子离子峰[M-H]- 223.095 7 (计算值为223.097 0), 可推测出其分子式为C12H16O4, 表明不饱和度为5。化合物11H NMR谱图显示, 化合物中含有明显的4个甲基(δH 2.11、1.92、1.25、1.20), 见表 1。化合物1的氢谱与化合物2的氢谱高度相似, 差异只是化合物1的氢谱中少了一个化学位移为7.58的单峰。通过13C NMR、DEPT和HSQC谱图可以知道化合物1共存在12个碳信号, 分别为4个甲基、2个次甲基, 6个不饱和碳(其中δC 184.0、187.7为羰基碳, δC 151.0、145.4、141.7、116.8)。这与化合物2的碳谱信号相比, 差异是化合物1少了一个化学位移为160.4的碳信号。推测化合物2为化合物1的甲酸酯。通过数据库检索化合物1为新化合物。为了确证化合物1的结构, 采集了化合物1的系列二维谱图。从1H-1H COSY谱(图 2), 显示存在C-9/C-10/C-11/C-12片段。HMBC谱(图 2) 显示了H3-7与C-4、C-6相关, H3-8与C-2、C-4相关, H-9与C-1、C-5相关, H3-10与C-6相关, H-11与C-6、C-10相关。因此确证了化合物1的平面结构。
该化合物含有2个手性中心C-9和C-11。通过和具有相似手性中心的citrinin类似物citrinin H1、citrinin H2、citriquinone A及7-methyl-citrinin H1的偶合常数(3JH-9, H-11偶合常数= 10 Hz) 的对比, 可以推测化合物1中的H-9和H-11与类似化合物具有相同的相对构型。由于化合物1与7-methyl-citrinin H1以及化合物2 (penicitrinone F) 均分离自Penicillium expansum GY618, 从生源途径考虑具有相同的绝对构型, 即C-9、C-11的绝对构型分别为9S, 11R[9, 13-15]。最终将化合物1命名为11-hydroxyl-penicitrinone F。
12个化合物的酪氨酸酶抑制活性结果表明, 化合物1312表现出一定的抑制酪氨酸酶活性, 其IC50值分别为75 ± 9、69 ± 8、64 ± 2 μmol·L-1。其他化合物的IC50值均大于100 μmol·L-1, 未表现出明显抑制酪氨酸酶的活性。曲酸作为阳性对照IC50值为46 ± 4 μmol·L-1
本研究从扩展青霉的大米固体发酵物中分离鉴定得到12个化合物, 其中化合物1为新化合物, 化合物2~46~12均首次从该菌种中分离得到, 除化合物12为苯醌类化合物, 化合物34为三萜类化合物, 其他化合物为甾体类化合物。甾体化合物是一类广泛存在于动植物体内的天然化合物, 这些化合物通常在细胞毒活性、抗炎、抗菌抑菌活性、抑制乙酰胆碱酯酶活性等方面表现突出。本研究对分离所得的12个化合物进行酪氨酸酶抑制活性的筛选, 发现化合物1的IC50值为75 ± 9 μmol·L-1, 而化合物2的IC50值为 > 100 μmol·L-1。化合物12同为苯醌类化合物, 化合物2是化合物1的甲酸酯, 提示化合物1侧链上的羟基对抑制酪氨酸酶有正向作用。化合物3~12中的大部分化合物的IC50值> 100 μmol·L-1, 而化合物312的IC50值分别为69 ± 8和64 ± 2 μmol·L-1。化合物1312具有一定的酪氨酸酶抑制剂的活性。本研究丰富了扩展青霉次生代谢产物结构的多样性。
AVANCE NEO 400 MHz核磁共振(瑞士布鲁克公司); 旋转蒸发仪(上海亚荣生化仪器厂); Agilent 1100 Series高效液相色谱仪(美国Agilent公司); BSA224S电子天平(赛多利斯科学仪器有限公司); DW-HL768超低温冷冻储存箱(中科美菱低温科技股份有限公司); Perkinelmer victor nivo酶标仪(珀金埃尔默仪器有限公司)。PDA培养基购自北京陆桥技术股份有限公司; 大米培养基: 使用1 000 mL三角瓶, 装250 g市售食用大米, 160 mL纯净水, 121 ℃高温灭菌30 min。酪氨酸酶(规格100 KU, 上海源叶生物科技有限公司); L-酪氨酸(上海泰坦科技股份有限公司); 曲酸(上海泰坦科技股份有限公司); 色谱甲醇和乙腈(美国Thermo Fisher Scientific公司); 柱色谱硅胶GF254 (100~200和200~300目, 安徽良臣硅源材料有限公司); 其他提取分离所用试剂级别均为分析纯。
菌株是本课题组从北京百欧博伟生物有限公司购买的扩展青霉, 根据菌株形态特征与ITS测序鉴定为Penicillium expansum, 并且命名为Penicillium expansum GY618, 随后在进化树中添加了Penicillium expansum GY618数据, 在G-BANK注册编号为OL598580。菌种在斜面培养基上活化好后放入4 ℃冰箱, 保存于赣南医科大学江西省天然产物研究实验室。
将菌株Penicillium expansum GY618接种至PDA平板, 放在28 ℃恒温培养箱中培养3天, 使菌株活化。在1 L锥形瓶中加入250 g大米和160 mL水, 随后放到立式压力蒸汽灭菌锅中以121 ℃灭菌30 min, 拿出放置在洁净工作台冷却, 冷却至室温后接入活化的3方块(大小约0.5 cm × 0.5 cm) 扩展青霉(Penicillium expansum GY618) 菌饼接种到锥形瓶中并放置于28 ℃的恒温环境下培养三周。
将扩展青霉的发酵产物(50 kg大米) 在室温下用乙醇浸泡, 浸提液减压浓缩, 反复提取5次后得到总浸膏。然后使用乙酸乙酯萃取7次, 得到乙酸乙酯部位浸膏100 g。对乙酸乙酯部位用质量比1∶2与80~120目硅胶拌样, 用石油醚-乙酸乙酯体系为洗脱液(100∶1→1∶1) 进行梯度洗脱, 得到8个部分(A~H)。首先对G部分使用反相硅胶柱用甲醇水体系梯度洗脱分离得到GA~GD四个部分。GB部分用正相硅胶柱分离得到4个馏分GB1~GB4, 之后GB2使用Sephadex LH-20柱分离, 以甲醇-二氯甲烷(1∶1) 洗脱得到两个子馏分GB21~GB22, 再用半制备型高效液相色谱对GB21纯化后得到1 (1.0 mg) 和2 (2.6 mg)。GC部分用正相硅胶柱分离得到5个馏分GC1~GC5, GC2部分使用Sephadex LH-20柱分离, 以甲醇-二氯甲烷(1∶1) 洗脱得到两个子馏分GC21~GC22, 对GC21使用半制备型高效液相色谱纯化后得到3 (4.6 mg) 和4 (3.5 mg)。GC4部分使用Sephadex LH-20柱分离, 以甲醇-二氯甲烷(1∶1) 洗脱得到两个子馏分GC41~GC42, 对GC41使用半制备型高效液相色谱纯化后得到5 (7.6 mg)、6 (2.5 mg)、7 (3.6 mg)、8 (4.5 mg)、9 (1.6 mg) 和10 (0.5 mg)。对GC5使用半制备型高效液相色谱纯化后得到11 (0.8 mg) 和12 (1.2 mg)。
化合物1, 常温下为黄色油状。[α]$ {}_{\mathrm{D}}^{24} $ -5.6 (c 0.1, MeOH); UV (MeOH) λmax (log ε): 245 (3.66) nm; HRESI-MS m/z: 223.095 7 [M-H]- (计算值为223.097 0); IR (MeOH) νmax 2 947, 2 363, 1 014; 1H NMR (400 MHz, CDCl3) 和13C NMR (100 MHz, CDCl3) 数据见表 1
化合物2, 常温下为黄色油状。[α]$ {}_{\mathrm{D}}^{24} $ -10.6 (c 0.1, CHCl3); 1H NMR (400 MHz, CDCl3) δH: 5.48 (1H, dq, J = 12.1, 6.3 Hz, H-11), 3.05 (1H, m, H-9), 2.09 (3H, s, H-7), 1.91 (3H, s, H-8), 1.36 (3H, d, J = 6.2 Hz, H-12), 1.25 (3H, d, J = 7.1Hz, H-10); 13C NMR (100 MHz, CDCl3) δC: 183.0 (C-1), 151.0 (C-2), 116.6 (C-3), 187.6 (C-4), 144.9 (C-5), 140.3 (C-6), 12.7 (C-7), 8.4 (C-8), 40.2 (C-9), 15.6 (C-10), 73.0 (C-11), 19.2 (C-12), 160.4 (C-13)。以上数据与文献[16]报道基本一致, 且旋光值与文献报道的[α]$ {}_{\mathrm{D}}^{20} $ -16.3 (c 2.0, CHCl3)[16]接近, 因此鉴定化合物2为penicitrinone F。
化合物3, 白色固体, 易溶于二氯甲烷; 1H NMR (400 MHz, CDCl3) δH: 4.68 (1H, br s, H-29a), 4.58 (1H, br s, H-29b), 3.79 (1H, d, J = 10.7 Hz, H-28a), 3.32 (1H, d, J = 11.0 Hz, H-28b), 3.17 (1H, dd, J = 11.0, 5.1 Hz, H-3), 2.37 (1H, m, H-19), 1.67 (3H, s, H-30), 1.01 (3H, s, H-27), 0.98 (3H, s, H-26), 0.97 (3H, s, H-23), 0.83 (3H, s, H-25), 0.76 (3H, s, H-24); 13C NMR (100 MHz, CDCl3) δC: 38.8 (C-1), 27.5 (C-2), 79.1 (C-3), 39.0 (C-4), 55.4 (C-5), 18.4 (C-6), 34.4 (C-7), 41.0 (C-8), 50.5 (C-9), 37.3 (C-10), 21.0 (C-11), 25.3 (C-12), 37.4 (C-13), 42.9 (C-14), 27.2 (C-15), 29.3 (C-16), 47.9 (C-17, C-19), 48.9 (C-18), 150.6 (C-20), 29.9 (C-21), 34.1 (C-22), 28.1 (C-23), 15.5 (C-24), 16.2 (C-25), 16.1 (C-26), 14.9 (C-27), 60.7 (C-28), 109.8 (C-29), 19.2 (C-30)。以上数据与文献[17-20]报道基本一致, 鉴定化合物3为白桦脂醇。
化合物4, 白色固体, 易溶于二氯甲烷: 1H NMR (400 MHz, CDCl3) δH: 5.19 (1H, t, J = 3.7 Hz), 3.55 (1H, d, J = 10.9 Hz), 3.22 (1H, m), 3.20 (1H, m), 1.16 (3H, s), 0.99 (3H, s), 0.94 (3H, s, 0.93 (3H, s), 0.89 (3H, s), 0.87 (3H, s), 0.79 (3H, s); 13C NMR (100 MHz, CDCl3) δC: 38.7 (C-1), 27.4 (C-2), 79.2 (C-3), 38.9 (C-4), 55.3 (C-5), 18.5 (C-6), 32.7 (C-7), 39.9 (C-8), 47.7 (C-9), 37.1 (C-10), 23.7 (C-11), 122.5 (C-12), 144.2 (C-13), 41.9 (C-14), 25.7 (C-15), 22.1 (C-16), 37.1 (C-17), 42.5 (C-18), 46.6 (C-19), 31.1 (C-20), 34.29 (C-21), 31.2 (C-22), 28.2 (C-23), 15.7 (C-24), 15.7 (C-25), 16.9 (C-26), 26.1 (C-27), 69.9 (C-28), 33.3 (C-29), 23.9 (C-30)。以上数据与文献[21-24]报道基本一致, 故鉴定化合物4为高根二醇。
化合物5, 白色固体, 易溶于二氯甲烷; 1H NMR (400 MHz, CDCl3) δH: 5.56 (1H, dd, J = 5.7, 2.5 Hz, H-6), 5.38 (1H, m, H-7), 5.19 (2H, m, H-22, H-23), 3.63 (1H, m, H-3), 2.46 (1H, m, H-4a), 2.28 (1H, m, H-4b), 1.03 (3H, d, J = 6.7 Hz, H-21), 0.94 (3H, s, H-19), 0.91 (3H, d, J = 6.9 Hz, H-28), 0.83 (3H, d, J = 6.4 Hz, H-27), 0.81 (3H, d, J = 6.4 Hz, H-26), 0.62 (3H, s); 13C NMR (100 MHz, CDCl3) δC: 38.5 (C-1), 32.1 (C-2), 70.6 (C-3), 40.9 (C-4), 139.9 (C-5), 119.7 (C-6), 116.4 (C-7), 141.5 (C-8), 46.4 (C-9), 37.2 (C-10), 21.2 (C-11), 39.2 (C-12), 43.0 (C-13), 54.7 (C-14), 23.1 (C-15), 28.4 (C-16), 55.8 (C-17), 12.2 (C-18), 16.4 (C-19), 40.6 (C-20), 21.2 (C-21), 132.1 (C-22), 135.7 (C-23), 43.0 (C-24), 33.2 (C-25), 19.8 (C-26), 20.1 (C-27), 17.8 (C-28)。以上数据与文献[25-27]报道的麦角甾-5, 7, 22E-三烯-3β-醇数据基本一致, 故鉴定化合物5为麦角甾-5, 7, 22E-三烯-3β-醇。
化合物6, 白色固体, 易溶于二氯甲烷; 1H NMR (400 MHz, CDCl3) δH: 6.50 (1H, d, J = 8.5 Hz, H-7), 6.24 (1H, d, J = 8.5 Hz, H-6), 5.24 (1H, dd, J = 15.2, 7.6 Hz, H-22), 5.13 (1H, dd, J = 15.1, 8.0 Hz, H-23), 3.96 (1H, m, H-3), 0.99 (3H, d, J = 6.6 Hz, H-21), 0.90 (3H, d, J = 6.6 Hz, H-28), 0.88 (3H, s, H-19), 0.83 (3H, d, J = 6.6 Hz, H-27), 0.81 (3H, d, J = 6.6 Hz, H-26), 0.82 (3H, s, H-18); 13C NMR (100 MHz, CDCl3) δC: 34.8 (C-1), 30.2 (C-2), 66.5 (C-3), 37.0 (C-4), 82.3 (C-5), 135.5 (C-6), 130.8 (C-7), 79.6 (C-8), 51.2 (C-9), 37.1 (C-10), 20.7 (C-11), 39.4 (C-12), 44.7 (C-13), 51.8 (C-14), 23.5 (C-15), 28.8 (C-16), 56.3 (C-17), 13.0 (C-18), 18.3 (C-19), 39.9 (C-20), 19.8 (C-21), 132.4 (C-22), 135.3 (C-23), 42.9 (C-24), 33.2 (C-25), 20.1 (C-26), 21.0 (C-27), 17.7 (C-28)。以上数据与文献[28]报道基本一致, 故鉴定化合物6为(22E)-5α, 8α-表二氧麦角甾-6, 22-二烯-3β-醇。
化合物7, 白色固体, 易溶于二氯甲烷; 1H NMR(400 MHz, CDCl3) δH: 6.59 (1H, d, J = 8.5 Hz, H-7), 6.28 (1H, d, J = 8.5 Hz, H-6), 5.43 (1H, dd, J = 6.1, 2.0 Hz, H-11), 5.24 (1H, dd, J = 15.2, 7.6 Hz, H-22), 5.13 (1H, dd, J = 15.1, 8.0 Hz, H-23), 4.01 (1H, m, H-3), 1.09 (3H, s, H-19), 1.00 (3H, d, J = 6.6 Hz, H-21), 0.91 (3H, d, J = 6.8 Hz, H-28), 0.82 (3H, d, J = 6.6 Hz, H-26), 0.81 (3H, d, J = 6.6 Hz, H-27), 0.73 (3H, s, H-18); 13C NMR (100 MHz, CDCl3) δC: 32.7 (C-1), 30.7 (C-2), 66.5 (C-3), 36.2 (C-4), 82.8 (C-5), 135.6 (C-6), 130.9 (C-7), 78.5 (C-8), 142.6 (C-9), 38.1 (C-10), 119.9 (C-11), 41.3 (C-12), 43.7 (C-13), 48.3 (C-14), 21.0 (C-15), 28.8 (C-16), 56.0 (C-17), 13.1 (C-18), 25.7 (C-19), 40.0 (C-20), 20.8 (C-21), 132.6 (C-22), 135.2 (C-23), 42.9 (C-24), 33.2 (C-25), 19.8 (C-26), 20.1 (C-27), 17.7 (C-28)。以上数据与文献[28]报道基本一致, 故鉴定化合物7为(22E)-5α, 8α-表二氧麦角甾-6, 9, 22-三烯-3β-醇。
化合物8, 白色固体, 易溶于二氯甲烷; 1H NMR (400 MHz, CDCl3) δH: 6.51 (1H, d, J = 8.5 Hz, H-7), 6.25 (1H, d, J = 8.5 Hz, H-6), 4.88 (1H, dd, J = 9.6, 1.6 Hz, H-22), 3.97 (1H, m, H-3), 1.50 (3H, d, J = 1.3 Hz, H-29), 0.93 (3H, d, J = 6.6 Hz, H-28), 0.92 (3H, d, J = 6.6 Hz, H-21), 0.89 (3H, s, H-19), 0.84 (3H, s, H-18), 0.83 (3H, d, J = 6.6 Hz, H-26), 0.78 (3H, d, J = 6.6 Hz, H-27); 13C NMR (100 MHz, CDCl3) δC: 34.8 (C-1), 30.2 (C-2), 66.6 (C-3), 37.0 (C-4), 82.3 (C-5), 135.6 (C-6), 130.9 (C-7), 79.6 (C-8), 51.2 (C-9), 37.1 (C-10), 20.8 (C-11), 39.5 (C-12), 44.7 (C-13), 51.8 (C-14), 23.5 (C-15), 28.1 (C-16), 57.1 (C-17), 13.1 (C-18), 18.3 (C-19), 34.2 (C-20), 20.7 (C-21), 131.2 (C-22), 135.9 (C-23), 50.3 (C-24), 30.9 (C-25), 20.2 (C-26), 21.9 (C-27), 17.1 (C-28), 13.3 (C-29)。以上数据与文献[29, 30]报道基本一致, 故鉴定化合物8为(22E, 24R)-5α, 8α-过氧化麦角甾-23-甲基-6, 22-二烯-3β-醇。
化合物9, 白色固体, 易溶于二氯甲烷; 1H NMR (400 MHz, CDCl3) δH: 6.59 (1H, d, J = 8.5 Hz, H-7), 6.29 (1H, d, J = 8.5 Hz, H-6), 5.43 (1H, dd, J = 6.0, 2.0 Hz, H-11), 4.89 (1H, d, J = 9.6 Hz, H-22), 4.01 (1H, m, H-3), 1.51 (3H, d, J = 1.3 Hz, H-29), 1.08 (3H, s, H-19), 0.93 (3H, d, J = 6.6 Hz, H-28), 0.91 (3H, d, J = 6.6 Hz, H-21), 0.83 (3H, d, J = 6.6 Hz, H-26), 0.78 (3H, d, J = 6.6 Hz, H-27), 0.76 (3H, s, H-18); 13C NMR (100 MHz, CDCl3) δC: 32.7 (C-1), 30.7 (C-2), 66.5 (C-3), 36.2 (C-4), 82.8 (C-5), 135.6 (C-6), 130.9 (C-7), 78.5 (C-8), 142.6 (C-9), 38.1 (C-10), 119.9 (C-11), 41.3 (C-12), 43.7 (C-13), 50.3 (C-14), 21.0 (C-15), 28.1 (C-16), 56.8 (C-17), 13.2 (C-18), 25.7 (C-19), 34.4 (C-20), 20.5 (C-21), 131.1 (C-22), 136.1 (C-23), 48.3 (C-24), 30.9 (C-25), 20.2 (C-26), 21.9 (C-27), 17.1 (C-28), 13.4 (C-29)。以上数据与文献[31, 32]报道基本一致, 故鉴定9为(22E, 24R)-5α, 8α-过氧化麦角甾-23-甲基-6, 9, 22-三烯-3β-醇。
化合物10, 白色固体, 易溶于二氯甲烷; 1H NMR (400 MHz, CDCl3) δH: 6.36 (1H, s, H-4), 5.26 (2H, m, H-22, 23), 1.26 (3H, s, H-19), 1.08 (3H, d, J = 6.8 Hz, H-21), 0.97 (3H, s, H-18), 0.90 (3H, d, J = 6.8 Hz, H-28), 0.82 (3H, d, J = 7.0 Hz, H-27), 0.80 (3H, d, J = 7.0 Hz, H-26); 13C NMR (100 MHz, CDCl3) δC: 39.0 (C-1), 34.5 (C-2), 199.3 (C-3), 126.6 (C-4), 156.2 (C-5), 200.2 (C-6), 40.9 (C-7), 62.3 (C-8), 49.5 (C-9), 36.1 (C-10), 25.2 (C-11), 38.4 (C-12), 54.2 (C-13), 215.0 (C-14), 38.1 (C-15), 23.3 (C-16), 49.4 (C-17), 17.2 (C-18), 24.1 (C-19), 37.3 (C-20), 23.8 (C-21), 132.4 (C-22), 135.2 (C-23), 43.4 (C-24), 33.2 (C-25), 19.8 (C-26), 20.2 (C-27), 17.7 (C-28)。以上数据与文献[33]报道基本一致, 故鉴定化合物10为dankasterone A。
化合物11, 无色油状, 易溶于二氯甲烷; 1H NMR (400 MHz, CDCl3) δH: 5.62 (1H, d, J = 1.8 Hz, H-2), 5.25 (1H, d, J = 7.3, 15.1 Hz, H-15), 5.17 (1H, d, J = 8.3, 15.3 Hz, H-16), 1.03 (3H, d, J = 6.8 Hz, H-14), 0.92 (3H, d, J = 6.8 Hz, H-21), 0.84 (3H, d, J = 6.8 Hz, H-20), 0.82 (3H, d, J = 6.8 Hz, H-19), 0.60 (3H, s, H-12); 13C NMR (100 MHz, CDCl3) δC: 171.4 (C-1), 112.4 (C-2), 170.8 (C-3), 105.3 (C-4), 35.4 (C-5), 35.2 (C-6), 49.0 (C-7), 50.5 (C-8), 21.5 (C-9), 29.0 (C-10), 55.4 (C-11), 11.9 (C-12), 40.3 (C-13), 21.2 (C-14), 134.8 (C-15), 133.0 (C-16), 43.0 (C-17), 33.2 (C-18), 19.8 (C-19), 20.1 (C-20), 17.7 (C-21)。以上数据与文献[34]报道基本一致, 故鉴定化合物11为(17R)-4-hydroxy-17-methylincisterol。
化合物12, 黄色的粉末, 易溶于二氯甲烷; 1H NMR (400 MHz, CDCl3) δH: 6.60 (1H, d, J = 9.5 Hz, H-7), 6.03 (1H, d, J = 9.5 Hz, H-6, 5.73 (1H, s, H-4), 5.23 (2H, dd, J = 10.2, 7.3 Hz, H-22, 23), 1.05 (3H, d, J = 6.7 Hz, H-21), 0.99 (3H, s, H-19), 0.96 (3H, s, H-18), 0.93 (3H, d, J = 6.8 Hz, H-28), 0.84 (3H, d, J = 6.8 Hz, H-27), 0.82 (3H, d, J = 6.8 Hz, H-26); 13C NMR (100 MHz, CDCl3) δC: 34.3 (C-1), 34.3 (C-2), 199.7 (C-3), 123.1 (C-4), 124.6 (C-5), 124.6 (C-6), 134.2 (C-7), 164.5 (C-8), 44.5 (C-9), 36.9 (C-10), 19.1 (C-11), 35.7 (C-12), 44.1 (C-13), 156.2 (C-14), 25.5 (C-15), 27.9 (C-16), 55.8 (C-17), 19.1 (C-18), 16.8 (C-19), 39.4 (C-20), 21.4 (C-21), 135.2 (C-22), 132.7 (C-23), 43.0 (C-24), 33.2 (C-25), 20.1 (C-26), 19.8 (C-27), 17.8 (C-28)。以上数据与文献[35, 36]报道基本一致, 故鉴定化合物12为麦角甾-4, 6, 8(14), 22-四烯-3-酮。
以曲酸为阳性对照, 参照Mikayoulou等[37]的方法并结合Chen[38]的方法测定化合物抑制酪氨酸酶的活性。将L-酪氨酸用PBS缓冲溶液配制成浓度为552 μmol·L-1的溶液。将酪氨酸酶用PBS缓冲液配制成100 U·mL-1的溶液。用乙醇将化合物和曲酸配制成初始浓度为1 000 μmol·L-1的溶液, 倍比稀释成一系列浓度, 分别为500、250、125、62.5 μmol·L-1。试验分为样品溶液组和空白溶液组。在96孔板中总体系液为200 μL, 其中20 μL样品溶液, 40 μL L-酪氨酸、40 μL酪氨酸酶溶液和100 μL PBS缓冲溶液。样品溶液组分别加入40 μL L-酪氨酸、20 μL样品溶液、100 μL PBS缓冲溶液和40 μL酪氨酸酶溶液。空白溶液组则用PBS替代样品溶液的加入。按照上述顺序加完后, 在492 nm下测定孵育前的吸光度值; 37 ℃恒温箱中孵育25 min, 在492 nm下测定孵育后的吸光度值。抑制率(%) = [(A-B)-(C-D)]/(A-B)×100。其中A为空白溶液孵育后的吸光度, B为空白溶液孵育前的吸光度, C为样品溶液孵育后的吸光度, D为样品溶液孵育前的吸光度。
实验数据采用SPSS 16.0软件进行统计分析, 所有实验数据以三个独立实验的平均值±标准差($ \overline{x} $ ± s) 表示, 两组间数据的比较采用单因素方差分析(ANOVA) 和Dunnett比较检验进行差异分析, 当P < 0.05时, 差异具有统计显著性。
作者贡献: 尹飞宇是本文第一作者, 负责酪氨酸酶抑制活性的测试及稿件的撰写; 梁盛负责酪氨酸酶抑制活性的测试; 朱前恒负责真菌的发酵、化合物的分离纯化; 袁丰华负责酪氨酸酶抑制活性测试的指导; 黄浩负责结构解析的指导; 温慧玲是本文的通讯作者, 负责实验设计及把关, 提供本文思路, 参与稿件修改等工作。
利益冲突: 所有作者均声明不存在利益冲突。
  • 国家自然科学基金资助项目(82260685)
  • 江西省科技厅资助项目(20232BAB206181)
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doi: 10.16438/j.0513-4870.2024-0845
  • 接收时间:2024-08-30
  • 首发时间:2025-11-07
  • 出版时间:2025-02-12
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  • 收稿日期:2024-08-30
  • 修回日期:2024-12-05
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国家自然科学基金资助项目(82260685)
江西省科技厅资助项目(20232BAB206181)
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    1.赣南医科大学康复学院, 江西 赣州 341000
    2.赣南医科大学基础医学院, 江西 赣州 341000
    3.赣南医科大学药学院, 江西 赣州 341000

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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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