^(60)Co-γ射线辐照对椪柑皮品质的影响  

Effects of^(60)Co-γRay Irradiation on the Quality of Ponkan Peels

作　　者：王雪 潘兆平[1] 李文革 苏志鹏 陈嘉序 何双 付复华[1,2] WANG Xue;PAN Zhaoping;LI Wenge;SU Zhipeng;CHEN Jiaxu;HE Shuang;FU Fuhua(Research Institute of Agricultural Products Processing,Hunan Academy of Agricultural Sciences,Changsha 410125,China;Longping Branch,College of Biology,Hunan University,Changsha 410125,China;Hunan Institute of Nuclear Agricultural Science and Space Mutation Breeding,Changsha 410125,China)

机构地区：[1]湖南省农业科学院农产品加工研究所,湖南长沙410125 [2]湖南大学生物学院隆平分院,湖南长沙410125 [3]湖南省核农学与航天育种研究所,湖南长沙410125

出　　处：《食品科学》2024年第23期205-212,共8页Food Science

基　　金：国家自然科学基金重点项目(32330084);“十四五”国家重点研发计划重点专项(2023YFD2100300);湖南省农业科技创新资金项目(2023CX30)。

摘　　要：为探究不同剂量^(60)Co-γ射线辐照对椪柑皮品质的影响,采用紫外-可见分光光度计、高效液相色谱仪等对椪柑皮主要功能成分进行测定。同时,利用顶空固相微萃取结合气相色谱-质谱仪对其挥发性物质成分进行定性定量分析。结果表明:辐照对椪柑皮的主要功能成分产生影响,一定辐照剂量处理能够增加总酚、总黄酮、川陈皮素与橘皮素含量,降低橙皮苷、没食子酸和阿魏酸含量,但对咖啡酸和绿原酸影响不显著;辐照处理对椪柑皮香气成分影响显著,烯烃类香气物质占比、种类及含量减少,相反,醇类、酚酸类及醛酮类香气物质增加,辐照处理后椪柑皮新增51种香气物质,气味活性值显示芳樟醇、柠檬烯和正辛醛是辐照椪柑皮的关键香气物质。由上可知,^(60)Co-γ射线处理对椪柑皮有陈化效果。此外,主成分分析表明不同辐照剂量处理后椪柑皮的品质存在差异,4 kGy时椪柑皮综合评价得分最高。该研究可为陈皮基原药材催陈和陈皮产品的开发利用提供参考依据。To investigate the effect of different doses of^(60)Co-γray irradiation on the quality of ponkan peels,the major functional components of irradiated ponkan peels were determined by ultraviolet-visible(UV-Vis)spectrophotometry and high performance liquid chromatography(HPLC).The volatile components were analyzed qualitatively and quantitatively using headspace-solid phase microextraction-gas chromatography-mass spectrometry(HS-SPME-GC-MS).The results showed that irradiation affected the major functional constituents of ponkan peels.Treatment with a certain dose of irradiation increased the contents of total phenol,total flavonoid,nobiletin and tangeretin while decreasing the contents of hesperidin,gallic acid and ferulic acid,but had no significant effect on caffeic acid or chlorogenic acid.The irradiation treatment had a significant effect on the aroma constituents of ponkan peels,resulting in a decrease in the percentage,type and content of olefinic substances and an increase in the contents of alcohols,phenolic acids and aldehydes and ketones.Totally 51 new aroma substances were formed after irradiation treatment,and the odor activity value(OAV)showed that linalool,limonene and n-octanal were the key aroma substances of irradiated ponkan peels,indicating that^(60)Co-γray treatment accelerated the aging of ponkan peels.In addition,principal component analysis(PCA)showed that the quality of ponkan peels varied with different irradiation doses,the highest overall evaluation score being observed for ponkan peels irradiated at 4 kGy.This study provides a reference for accelerating the aging of Pericarpium Citri Reticulatae as well as a basis for the development and utilization of Pericarpium Citri Reticulatae products.

关 键 词：^(60)Co-γ射线 椪柑皮 顶空固相微萃取-气相色谱-质谱联用 综合评价 

分 类 号：TS255[轻工技术与工程—农产品加工及贮藏工程]