电子束辐照对滨海沙丘野生豆科植物种子生物活性的影响

Q1 Agricultural and Biological Sciences
Prabhavathi Supriya, Kandikere R Sridhar
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引用次数: 6

摘要

背景:最近的专利表明,蔬菜成分在新型食品配方中有几种应用。许多所谓的抗营养成分(如单宁、皂苷、凝集素和蛋白酶抑制剂)具有营养和药用意义。居住在印度西南部海岸沙丘上的两种野生豆科植物菜豆属的种子以其多种生物活性原理而闻名(例如酚类物质、单宁、菜豆氨酸、菜豆蛋白和植物血凝素)。目的:研究电子束辐照对两种滨海沙丘野生豆科植物菜豆(Canavalia cathartica)和海豆(C. martima)种子生物活性成分的影响。方法:采用不同剂量(2.5、5、10、15 kGy)的EB照射,观察两种植物的6种生物活性成分(总酚、正二氢酚、单宁、菜豆氨酸、胰蛋白酶抑制剂和植物血凝素)与对照种子的变化。采用单因素方差分析(One-way ANOVA)跟踪对照和不同辐照剂量下种子生物活性成分的变化。结果:两种豆科植物的种子均不含正二水酚和胰蛋白酶抑制剂。通风莲总酚含量在5kgy时呈显著的剂量依赖性增加,之后呈下降趋势。单宁含量在10 kGy以下没有变化,在15 kGy时显著降低。菜豆氨酸含量无明显变化,植物血凝素抗人红细胞活性未发生改变。海参种子总酚类物质和单宁含量变化不显著。5 kGy时,大麻碱含量呈显著剂量依赖性增加后又显著降低。植物血凝素对A、B和O红细胞的活性没有变化,而对AB红细胞的活性在2.5 kGy时下降,并且在更高剂量下继续下降。结论:EB辐照剂量可选择性地改变菜籽草种子的生物活性,使菜籽草的药用、营养、功能和烹饪特性发生改变。除了生物活性成分的选择性变化外,种子的保质期也延长了。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Impact of Electron Beam Irradiation on the Bioactive Principles of Seeds of Coastal Sand Dune Wild Legumes (Canavalia spp.).

Background: Recent patents reveal that vegetable ingredients have several applications in novel food formulations. Many so-called antinutritional components (e.g. tannins, saponins, lectins and protease inhibitors) have nutraceutical as well as pharmaceutical significance. Seeds of two wild legumes of the genus Canavalia inhabitants of the coastal sand dunes of Southwest India are known for a variety of bioactive principles (e.g. phenolics, tannins, canavanine, concanavalin and phytohemagglutinins).

Objective: This study evaluates the impact of Electron Beam (EB) irradiation on the bioactive components of seeds of two coastal sand dune wild legumes Canavalia cathartica and C. maritima.

Methods: The dry seeds of C. cathartica and C. maritima were EB irradiated with different doses (2.5, 5, 10 and 15 kGy) to follow changes in six bioactive principles (total phenolics, orthodihydric phenols, tannins, canavanine, trypsin inhibitors and phytohemagglutinins) in comparison to control seeds. One-way ANOVA was employed to follow the variation in bioactive components of seeds in control and different doses of irradiation.

Results: Seeds of both legumes were devoid of orthodihydric phenols and trypsin inhibitors. In C. cathartica, the total phenolics showed significant dose-dependent increase up to 5 kGy and decreased thereafter. Tannin content was not altered up to 10 kGy followed by significant decrease at 15 kGy. There was no significant change in canavanine content and the phytohemagglutinin activity against human erythrocytes was not altered. Seeds of C. maritima did not show significant changes in total phenolics as well as tannin contents. The content of canavanine showed significant dose-dependent increase up to 5 kGy followed by significant decrease. There was no variation in phytohemagglutinin activity against erythrocytes A, B and O, while against AB, the activity decreased at 2.5 kGy and further decrease was constant at higher doses.

Conclusion: The EB irradiation doses employed have selectively altered the bioactive principles of Canavalia seeds and such treatments may facilitate to maneuver desired medicinal, nutritional, functional and cooking properties. Besides selective changes in bioactive components the seeds have extended shelf life.

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来源期刊
Recent patents on food, nutrition & agriculture
Recent patents on food, nutrition & agriculture Agricultural and Biological Sciences-Agronomy and Crop Science
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