可食用昆虫的低蛋白质消化度纠正的氨基酸分数和净到蛋白质转化因子值
Masaru Ochiai1, Yoshihiro Suzuki1, Ren Suzuki1
1School of Veterinary Medicine, Kitasato University, Higashi 23-35-1 Towada, Aomori 034-8628, Japan.
Food chemistry
|June 6, 2024
概括
可食用昆虫中的素可以膨胀蛋白质含量,导致营养评估不准确. 这项研究显示,昆虫的蛋白质消化性校正氨基酸分数 (PDCAAS) 比素低,影响了生长研究.
科学领域:
- 营养科学 营养科学
- 食品化学 食品化学
- 昆虫学 昆虫学是一门学科.
背景情况:
- 可食用昆虫是越来越多的饮食蛋白质来源.
- 素是昆虫外骨的主要组成部分,是一种含的纤维.
- 素的存在可能会干扰使用标准转化为蛋白质转化因子 (NPF) 准确确定蛋白质含量.
研究的目的:
- 准确评估食用昆虫的真正蛋白质价值.
- 研究基含量对蛋白质质量指标的影响.
- 评估迁徙食对哺乳动物生长和新陈代谢的营养影响.
主要方法:
- 确定氨基酸分数 (AAS),蛋白质消化能力纠正的AAS (PDCAAS),奇含量,以及五种食用昆虫物种的净NPF.
- 评估迁徙的氨基酸成分对老鼠生长和脂质代谢的影响.
- 将昆虫蛋白质质量参数与素作为参考进行比较.
主要成果:
- 昆虫AAS范围从63到94,其素含量从1.6到10.7g/100g不等.
- 昆虫的PDCAAS范围从44到81,明显低于素 (97).
- 食迁徙,尽管具有最低的PDCAAS,负面影响了老鼠的生长和改变了脂质代谢.
结论:
- 可食用昆虫中的基含量可能导致对真实蛋白质含量和净NPF的高估.
- 昆虫的计算PDCAAS比素低,表明蛋白质质量下降.
- 准确的昆虫蛋白质评估需要考虑素含量和氨基酸消化能力,以进行可靠的营养评估和了解生长影响.
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