METHOD FOR QUANTITATIVE DETERMINATION OF STARCH FRACTIONS OF AMYLOSE AND AMYLOPECTIN
	LITVYAK V V; BYZOV V A; LUKIN N D; ZHEVORA S V; GORDIENKO N N
	2024-06-07
专利权人	FEDERAL STATE BUDGET SCI INST INST ENGIN (BUDG-Non-standard)
申请日期	2024-06-07
专利号	RU2835432-C1
成果简介	NOVELTY - Invention relates to methods for assessing the quality of starch and analytical methods for quantitative determination of starch fractions in starch. Method for quantitative determination of starch fractions of amylose and amylopectin in starch involves sample preparation of starch samples as a result of cold pressing in a mould at press pressure of not less than 100 kg/cm2 for 15-30 minutes to obtain solid, strong flat-cylindrical tablets with a smooth and defect-free surface. Further, quantitative determination of amylose and amylopectin starch fractions is carried out on the basis of X-ray structural analysis as follows. Diffraction curves are recorded on an X-ray diffractometer using copper CuKα radiation filtered by nickel in absolutely identical conditions in step mode of discrete scanning. Radiographs are recorded in reflection mode. Based on the analysis of the obtained X-ray patterns, the degree of crystallinity is found, which indicates the amount of the amylopectin fraction responsible for the formation on the linear sections of the crystalline sections, by calculating it from the intensity ratio ((I o-I a)/I o)⋅100 %. I a is the X-ray diffraction intensity on the amorphous regions, I o is the total X-ray diffraction intensity. Degree of amorphism, which indicates the amount of the amylose fraction, is determined as difference between 100% and the degree of crystallinity. USE - Measuring. ADVANTAGE - Invention enables to develop an analytical accurate, high-efficiency and simple method for quantitative determination of amylose and amylopectin starch fractions. 1 cl, 9 dwg, 2 tbl, 13 ex
IPC 分类号	G01N-023/083 ; G01N-033/10
国家	俄罗斯
专业领域	化学化工
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/16351
专题	中国科学院新疆生态与地理研究所
作者单位	FEDERAL STATE BUDGET SCI INST INST ENGIN (BUDG-Non-standard)
推荐引用方式 GB/T 7714	LITVYAK V V,BYZOV V A,LUKIN N D,et al. METHOD FOR QUANTITATIVE DETERMINATION OF STARCH FRACTIONS OF AMYLOSE AND AMYLOPECTIN. RU2835432-C1[P]. 2024.

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