EVALUATION OF SEVERAL METHODS FOR ANALYSIS OF SWEET-POTATO PHENOLICS

被引：41

作者：

WALTER, WM ^{[1
]}

PURCELL, AE ^{[1
]}

机构：

[1] N CAROLINA STATE UNIV,DEPT FOOD SCI,RALEIGH,NC 27650

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 1979年 / 27卷 / 05期

关键词：

D O I：

10.1021/jf60225a030

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The phenolic content of the sweet potato cultivars, Australian Canner, Pelican Processor, Porto Rico, Julian, Jewel, Centennial, and the selection NC-319 was measured using several methods. These included bonding to insoluble polymers (Rexyn and polyvinylpyrrolidone), reaction with the Folin-Dennis reagent, computation from the absorbance at 323 nm, coupling with diazotized p-phenylazoaniline and with 3-methyl-2-benzothiazolinone, and measurement by a high-pressure liquid chromatographic procedure. Measurement of changes in absorbance at 323 nm caused by treatment of the sample with Rexyn-201(-Cl-) gave the most rapid and reasonably accurate assay of total phenolic content. © 1979, American Chemical Society. All rights reserved.

引用

页码：942 / 946

页数：5

共 20 条

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ANDERSEN RA, 1968, TOBACCO SCI, V12, P107

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