搜索结果: 1-11 共查到“食品检验学 method”相关记录11条 . 查询时间(0.427 秒)
Preparation of flaxseed for lignan determination by gas chromatography–mass spectrometry method
defatting extraction GC/MS hydrolysis lignans
2014/2/25
Since 1980s, several methods for the determination of lignans in food samples have been developed depending on the types of lignans and foods analysed, but mostly on flaxseed as a reference food. In t...
Evidence for wheat, rye, and barley presence in gluten free foods by PCR method – comparison with ELISA method
polymerase chain reaction ELISA wheat rye barley gliadin
2014/2/26
A method of the evidence for the presence of wheat, rye, and barley in gluten free foods, based on the polymerase chain reaction (PCR), was validated. DNA was isolated from foods by chaotropic solid p...
基于近红外光谱分析法的奶粉品质快速检测（Quick Determination Method of Milk Powder Quality by Near-infrared Spectroscopy）
奶粉 品质检测 近红外光谱
2009/8/11
选择11个品牌的10多种配方奶粉，共80个样品，使用PDA型近红外光谱仪采集奶粉漫反射光谱，波长范围1089～2219nm。对光谱进行了SNV、软阈小波消噪及一阶微分预处理，通过比较主成分在不同波长上的权重分布，选择不同波段建立校正模型和进行预测精度分析。结果表明，奶粉的蛋白质和脂肪的近红外光谱信息主要分布于1100～1400nm和1800～2200nm波段内，采用小波消除原始光谱的噪声能提高校正...
Application of Colorimetric Method for Determination of Lipid Peroxides in Foods
peroxide value lipid peroxide lipid oxidation triacylglycerol
2009/6/18
Application of a colorimetric method for determination of lipid peroxides in foods was investigated. We identified the optimal amount of potassium iodide used in the method. It was confirmed that by a...
Studies on Determination of Soy Sauce Chromaticity Using a Synthesized Combination of a Spectro Colorimetric Method and the Multiple Regression Analysis
soy sauce chromaticity spectro colorimetric method regression analysis
2009/6/18
A method of determining soy sauce chromaticity by a spectro colorimetric method was investigated to objectively evaluate the chromaticity usually decided by a visual sensory test. The objective chroma...
Performance of an Accelerated Method for the Determination of Equilibrium Moisture Content
equilibrium moisture content accelerated performance
2009/6/18
The performance of a method that could accelerate the sorption process of biological materials was evaluated with respect to rapidness (expedition of sorption), comparability of equilibrium moisture c...
Characteristic Aroma Components of the Volatile Oil of Yellow Keaw Mango Fruits Determined by Limited Odor Unit Method
mango Mangifera indica L. ‘Keaw’ odor detection threshold
2009/6/18
Odor detection thresholds of optically active compounds and other volatile compounds found in the oil of yellow Keaw mangoes were determined. Odor intensity of individual components was evaluated by L...
Method of Evaluating Quality of Freshly Cut Welsh Onions
fresh-cut Welsh onion quality evaluation
2009/6/18
To determine a useful method for evaluating the quality of fresh-cut Welsh onions (Allium fistulosum L.), the onions were examined and electrical conductivity (EC), potassium and ammonia contents of e...
Evaluation of Japanese Green Tea Extract Using GC/O with Original Aroma Simultaneously Input to the Sniffing Port Method（OASIS）
Japanese green tea aroma extract dilution analysis gas chromatography olfactometry
2009/6/17
Recent studies of natural aromas have focused on only the lowest odor threshold compounds. In this study, we evaluated the volatile compounds of Japanese green tea, comparing the original aroma simult...
Identification of Volatile Compounds which Enhance Odor Notes in Japanese Green Tea using the OASIS（Original Aroma Simultaneously Input to the Sniffing port）method
Japanese green tea Camellia sinensis cv. Yutakamidori GC/O with original aroma simultaneously input to the sniffing port
2009/6/10
We evaluated the volatile compounds of Japanese green tea using GC/O with the original aroma simultaneously input to the sniffing port (OASIS) method in order to determine the relationship between the...
HPLC-MS/MS method for analysis of isoproturon in difficult matrix: poppy seeds
HPLC-MS/MS isoproturon method development SPE poppy seeds
2014/3/3
While several validated methods have been developed for analysis of phenylurea herbicides in staple food plants, analytical procedures suitable for their quantification in minor crops such as poppy se...