浙江农业科学 ›› 2025, Vol. 66 ›› Issue (2): 467-470.DOI: 10.16178/j.issn.0528-9017.20240834

• 食品技术 • 上一篇    下一篇

干燥方式对荸荠种杨梅果渣多糖结构和活性的影响

刘晨星(), 曹艳, 夏其乐()   

  1. 浙江省农业科学院 食品科学研究所 农业农村部果品产后处理重点实验室 农业农村部蔬菜采后保鲜与加工重点实验室(部省共建)全省生鲜食品智慧物流与加工重点实验室,浙江 杭州 310021
  • 收稿日期:2024-10-29 出版日期:2025-02-11 发布日期:2025-03-24
  • 通讯作者: 夏其乐,E-mail:cookxql@163.com
  • 作者简介:刘晨星(1994—),男,浙江义乌人,研究实习员,硕士,研究方向为果品加工及活性研究,E-mail:cxliuzaas@163.com
  • 基金资助:
    浙江省“三农九方”项目(2023SNJF016)

Effects of different drying treatments on the structure and activity of polysaccharides from Biqi bayberry pomace

LIU Chenxing(), CAO Yan, XIA Qile()   

  1. Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Key Laboratory of Post-harvest Handling of Fruits, Ministry of Agriculture and Rural Affairs, Key Laboratory of Postharvest Preservation and Processing of Vegetables (Co-construction by Ministry and Province), Zhejiang Key Laboratory of Intelligent Food Logistic and Processing, Hangzhou 310021, Zhejiang
  • Received:2024-10-29 Online:2025-02-11 Published:2025-03-24

摘要:

杨梅果渣作为一种果汁果酒加工副产物,富含多种营养成分和活性物质。该研究以荸荠种杨梅果渣为原料,采用热风干燥和真空冷冻干燥处理后提取多糖,系统分析所得多糖组分、结构表征和抗氧化活性。多糖中总糖、硫酸根、多酚、糖醛酸、蛋白质等成分含量的分析结果表明,不同干燥处理对提取得到多糖的组分影响差异显著,尤其是多酚和蛋白质含量(P<0.05)。傅里叶红外光谱仪、电位及激光粒度分析仪分析结果表明,干燥方式对多糖结构表征有一定的影响。1,1-二苯基-2-苦基肼自由基(DPPH)、2,2'-联氮-双-3-乙基苯并噻唑啉-6-磺酸(ABTS)自由基清除能力以及铁离子还原/抗氧化能力(FRAP)结果均表明,真空冷冻干燥处理得到的多糖抗氧化活性更强(P<0.05)。真空冷冻干燥对杨梅果渣处理的效果更为理想,分析结果可为杨梅果渣的高质化利用提供重要参考。

关键词: 荸荠种杨梅, 果渣干燥粉, 多糖, 组分分析, 结构表征, 抗氧化活性

Abstract:

As a by-product of juice and wine processing, bayberry pomace is rich in various nutrients and bioactive substances. In this study, polysaccharide was extracted from Biqi bayberry pomace by hot air drying and vacuum freeze drying treatments. The components, structural characterization and antioxidant activity of extracted polysaccharide were systematically analyzed. The analysis results of the content of total sugars, sulfate radicals, polyphenols, uronic acids, proteins and other components in polysaccharides showed that different drying treatments had significant differences in the components of extracted polysaccharides, especially in the content of polyphenols and proteins(P<0.05). The analysis results of Fourier transform infrared spectrometer, zetapotential analyzer and laser particle size analyzer indicate that the drying treatments had a certain influence on the structural characterization of polysaccharide. The results of DPPH free radical scavenging ability, ABTS free radical scavenging ability and ferric reducing ability of plasma showed that the polysaccharides extracted by vacuum freeze drying treatment had stronger antioxidant activity (P<0.05). Vacuum freeze drying is more suitable for the drying treatment of bayberry pomace. The results of this research could provide essential reference for the high-quality utilization of bayberry pomace.

Key words: Biqi bayberry, pomace powder, polysaccharide, component analysis, structural characterization, antioxidant activity

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