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Silkworm pupae protein-based odorless food ingredient: Rutin-facilitated modification for off-odor volatile removal

文献类型： 外文期刊

作者： Yao, Hao-Tian 1 ; Huang, Ze-Lai 1 ; Li, Yi-Tong 1 ; Herman, Richard Ansah 1 ; Zhan, Yu-Fan 1 ; Khurshid, Marriam 1 ; Xu, Yan 1 ; Wu, Fu-An 1 ; Wang, Jun 1 ;

作者机构： 1.Jiangsu Univ Sci & Technol, Sch Biotechnol, Jiangsu Key Lab Sericultural & Anim Biotechnol, Zhenjiang 212100, Jiangsu, Peoples R China

2.Chinese Acad Agr Sci, Sericultural Sci Res Ctr, Key Lab Silkworm & Mulberry Genet Improvement, Minist Agr & Rural Affairs, Zhenjiang 212100, Jiangsu, Peoples R China

3.Jiangsu Univ Technol, Jiangsu Key Lab Clean Energy Storage & Convers, Changzhou 213001, Jiangsu, Peoples R China

关键词： Silkworm (Bombyx mori); Pupae protein; SPME-GC-MS; Odor activity value; Rutin

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）

ISSN： 0141-8130

年卷期： 2025 年 312 卷

页码：

收录情况： SCI

摘要： Silkworm (Bombyx mori) pupae are a popular insect-based food source, particularly in Southeast Asia. However, their off-flavors can hinder their widespread acceptance in food applications. To further develop insects as viable food resources, it is crucial to identify and eliminate the off-odor volatile compounds present. This study aimed to identify and eliminate off-odor volatiles from silkworm pupae. A total of 34 odor volatiles were detected from five silkworm pupae components using solid-phase microextraction gas chromatography (SPME-GC-MS). High concentrations of aldehydes, such as nonanal (1.4 mu g/g) and decanal (0.14 mu g/g), were identified as the primary contributors to the off-odor. Additionally, silkworm pupae protein was found to be a major carrier of these volatiles. To effectively remove the off-odor compounds, polyphenols were used to facilitate the release of aldehydes from the pupae proteins. Specifically, 160 mu M rutin increased the release rate of nonanal by 2.2-fold by competing for tryptophan and tyrosine residue sites on the proteins. After a 6 h heat treatment, nonanal release reached over 97 % (p < 0.05). This research provides an effective, cost-efficient strategy for eliminating off-odor volatiles, paving the way for the development of odorless silkworm pupae protein for food applications.

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