摘要
以市售休闲豆干为原料，分别采用凯式定氮法、快速水分测定法和索氏提取法测定其蛋白质、水分和脂肪含量，再使用热量成分检测仪分别测定其含量，运用数学分析法对其检测模型进行校正，得到相应的校正模型。所得校正后的热量成分检测仪模型分别为：yp=1．15x，yw=0．85x，yf=0．65x，模型适用于蛋白质含量、水分含量和脂肪含量范围分别为22．80-27．30，36．12-51．59，7．42-14．80g／100g的休闲豆干的校正。经校正后蛋白质含量平均绝对误差减小了1．44，平均误差率减小了6．23%；水分含量平均绝对误差减小了6．77，平均误差率减小了14．71％；脂肪含量平均绝对误差减小了4．49，平均误差率减小了45．74％，校正后热量成分检测仪能够快速、准确地检测休闲豆千中蛋白质、水分、脂肪的含量，为休闲豆干蛋白质、水分、脂肪含量的快速检测提供了新途径。
Using the market sale leisure dried bean curd as material, determinated the protein content in leisure dried tofu by Kjeldahl method, the moisture content in rapid moisture tester and the fat content with Soxhlet extraction method. Then using the Calory An- swer to determinate the contents of protein, fat and moisture, usingthe mathematical analysis method to correct the detection model, and then the corresponding correction model is obtained. After the cali- bration, the model of the Calory Answer respectively is yp = 1.15x, yw = 0.85x, yf = 0.65x, these correction model were suitable for the leisure dried tofu that the protein content, moisture content and the fat content ranges in 22.80-27.30 g/100 g, 36.12-51.59 g/100 g and 7.42-14.80 g/100 g, respectively. The protein content after correc- tion of absolute error is decreased by 1.44, the average error rate is reduced by 6.23%; moisture content of absolute error is reduced 6.77, the average error rate reduces 14.71% ; fat content of absolute error is decreased by 4.49 and the average error rate reduces 45.74%. After the correction, the corrected Calory Answer can quickly and accurately detect the content of protein, moisture, fat, and provides a new approach for the rapid detection of protein, moisture, fat con- tent in the leisure dried tofu.
作者
黄路路
吴菲菲
李化强
赵良忠
尹锦辉
常伦峰
HUANG Lu-lu WU Fei-fei LI Hua-qiang ZHAO Liang-zhong YIN Jin-hui CHANG Lun-feng(Department of Biological and Chemical Engineering, Shaoyang University, Shaoyang, Hunan 422000, China Soybean Processing Techniques of the Application and Basic Research Base in Hunan Province, Shaoyang , Hunan 422000, China Hunan Provincial Engineering and Technology Research Center for Fruit and Vegetable Clean Processing, Shaoyang , Hunan 422000, China)
出处
《食品与机械》
CSCD
北大核心
2016年第10期57-62,共6页
Food and Machinery
基金
湖南省科技厅平台项目(编号:2013TP4068
2015TP2022)
湖南省科技厅重点项目(编号:2015CK3031)
邵阳学院研究生科研创新项目(编号:CX2016SY027)
关键词
豆干
蛋白质
水分
脂肪
热量成分
模型校正
dried bean curd
protein
moistures fat
calory answer
model correction
