结构信息分析和黄粉幼虫黄粉幼虫的蛋白质和基的相对含量测定,使用拉曼光谱学
Meng-Lei Xu1, Yu Gao2, Xiao Xia Han3
1Jilin Provincial Key Laboratory of Nutrition and Functional Food College of Food Science and Engineering, Jilin University, Changchun 130062, PR China.
International journal of biological macromolecules
|June 6, 2024
概括
准确的昆虫蛋白质量化对于营养至关重要. 拉曼光谱法提供了一种比Kjeldahl更快,更精确的方法,可以有效地测量黄粉幼虫等昆虫中的蛋白质和素.
科学领域:
- 食品科学 食品科学 食品科学
- 分析化学 分析化学
- 生物技术是生物技术.
背景情况:
- 昆虫蛋白质是一种有价值的营养资源.
- 现有的蛋白质测量方法 (Kjeldahl) 过高估计了昆虫蛋白质的含量.
- 需要一种精确的方法来量化昆虫蛋白和素.
研究的目的:
- 开发和验证一种更准确的方法来量化昆虫提取物中的蛋白质和素.
- 为此目的,利用拉曼和红外 (IR) 光谱学的分子振动信息.
- 将新型光谱法与传统的基尔达尔法进行比较.
主要方法:
- 从黄色粉幼虫中提取蛋白质和基.
- 使用拉曼光谱和红外光谱 (IR) 来监测分子振动的分析.
- 在拉曼光谱中识别特征性奇峰 (NH振动在3475厘米-1度).
- 使用拉曼数据确定转化为蛋白质的转化因子 (5.66 ± 0.01).
主要成果:
- 拉曼光谱学通过其特有的NH振动准确地识别了基.
- 建立了一个新的转化为蛋白质的转化因子,提高了准确性.
- 光谱法为基尔达尔方法提供了更快,更准确的替代方案.
- 该方法还提供了对杂质,纯度和结构信息的见解.
结论:
- 拉曼光谱是一种可行的,优质的方法,用于量化昆虫中的蛋白质和基含量高的基含量.
- 这种技术克服了与Kjeldahl方法相关的高估问题.
- 开发的方法可以更准确地评估昆虫蛋白质来源的营养价值.
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