摘要
测定了20种黄皮果汁的可溶性固形物、可溶性糖、可滴定酸的质量分数及pH等基础品质指标以及抗坏血酸、总黄酮和总多酚等生物活性成分的质量浓度,并采用DPPH法和FRAP法评价其抗氧化能力,同时探讨了抗氧化能力与抗坏血酸、总黄酮、总多酚质量浓度的相关性.结果表明:不同黄皮品种间的可溶性固形物、可溶性糖、可滴定酸的质量分数和抗坏血酸、总黄酮、总多酚的质量浓度差异较大,其糖酸比、pH、DPPH自由基清除能力以及FRAP抗氧化能力差异也较大,基于上述理化指标的Q型聚类分析可将20个黄皮品种分成3大类群;DPPH自由基清除能力、FRAP抗氧化能力均与抗坏血酸、总黄酮和总多酚的质量浓度呈极显著的正相关(P<0.01),表明黄皮果汁的抗氧化作用与其所含的抗坏血酸、总黄酮和总多酚关系密切.
In this study,the basic quality parameters(pH,soluble solid content,soluble sugar content and titratable acid content)and the contents of major bioactive components(ascorbic acid,total flavonoids,and total phenolics)of fruit juice from 20 different wampee(Clausena lansium)cultivars were determined.Meanwhile their antioxidant activities were also evaluated based on 1,1-diphenyl-2-picrylhydrazyl(DPPH)radical scavenging and ferric reducing antioxidant power(FRAP)assays.Moreover,the correlation of antioxidant activities with ascorbic acid,total flavonoids and total phenolics contents were explored.The results showed that significant differences in pH,soluble solid content,soluble sugar content,titratable acid content,sugar/acid ratio,ascorbic acid content,total flavonoids content,total phenolics content,DPPH radical scavenging capacity and FRAP antioxidant capacity existed among the 20 wampee cultivars.The Q cluster analysis showed that the 20 wampee cultivars were divided into 3 groups based on the above physicochemical indices.Both DPPH scavenging capacity and FRAP antioxidant capacity were significantly positively correlated with the contents of ascorbic acid,total flavonoids and total phenolics,suggesting that antioxidation of wampee fruit juice was closely correlated with its bioactive composition of ascorbic acid,total flavonoids and total phenolics.
作者
彭程
薛海军
常晓晓
邱继水
陈喆
林志雄
陆育生
PENG Cheng;XUE Haijun;CHANG Xiaoxiao;QIU Jishui;CHEN Zhe;LIN Zhixong;LU Yusheng(Institute of Fruit Tree Research,Guangdong Academy of Agricultural Sciences∥Key Laboratory of South Subtropical Fruit Biology and Resource Utilization,Ministry of Agriculture∥Guangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree Research,Guangzhou 510640,China;Productivity Promotion Center of Wujiang District,Shaoguan 512026,China)
出处
《华南师范大学学报（自然科学版）》
CAS
北大核心
2020年第1期70-76,共7页
Journal of South China Normal University(Natural Science Edition)
基金
广东省科技计划项目(2016B020201004)
广东省优稀水果产业技术体系项目(2019KJ116)
农业农村部热带作物种质资源保护项目(151821301354052705)
广东省农业科学院院长基金项目(201817)
广东省农业科学院青年导师制项目(R2018QD-019)
佛山市财政专项资金-2019年度共建广东农业科技示范市项目
关键词
黄皮
果汁
品种
抗氧化能力
wampee
fruit juice
cultivar
antioxidant capacity
