数字农科院2.0

Identification of allergens and allergen hydrolysates by proteomics and metabolomics: A comparative study of natural and enzymolytic bee pollen

文献类型： 外文期刊

作者： Yuxiao Tao;Shuting Yin;Linglin Fu;Miao Wang;Lifeng Meng;Fukai Li;Xiaofeng Xue;Liming Wu;Qiangqiang Li

作者机构：

关键词： Allergens;Brassica campestris bee pollen;Enzymatic hydrolysates;Metabolomics;Proteomics

期刊名称： Food Research International

ISSN： 0963-9969

年卷期： 2022 年 158.0 卷

页码：

收录情况： SCIE（2022版） ; EI（2022版）

摘要： Bee pollen as a plant-derived food is consumed as nutritional/functional supplements by humans. But it might confer foodborne allergenicity in susceptible populations, limiting its extensive application. In this study, five potential allergens including profilin, cystatin, prolamin, expansin, and alcohol dehydrogenase in bee pollen derived from Brassica campestris (BP-Bc), were identified through mass spectrometry-based proteomic analysis. Moreover, different types of enzymes (cellulases, pectases, and papains) serve biological roles in pollen wall breaking and expansion, but also promote allergen release and degradation. Proteomic analysis showed that profilin, cystatin, and alcohol dehydrogenase were significantly reduced in BP-Bc following joint treatment with three enzymes. Metabolomic characterization of potential enzymatic hydrolysates of these significantly-decreased allergens was performed, which showed nine major oligopeptides and six amino acids at significantly higher levels in the enzyme-treated BP-Bc. These findings clarified the culprit responsible for bee pollen allergy and the mechanism of enzymatic desensitization for its further development.

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