Differentiation of intermediate products (concentrates and purees) from the huh industry by means of phenolic content

被引:7
作者
Bartolome, B [1 ]
Bengoechea, ML [1 ]
Sancho, AI [1 ]
Estrella, I [1 ]
Hernandez, MT [1 ]
Gomez-Cordoves, C [1 ]
机构
[1] CSIC, Inst Fermentac Ind, E-28006 Madrid, Spain
来源
ZEITSCHRIFT FUR LEBENSMITTEL-UNTERSUCHUNG UND-FORSCHUNG A-FOOD RESEARCH AND TECHNOLOGY | 1998年 / 206卷 / 05期
关键词
phenolic content; apple; peach; fruit concentrates; fruit purees;
D O I
10.1007/s002170050272
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Concentrates and purees are intermediate products in the manufacture of commercial fruit juices. In this paper, the phenolic content [total polyphenols (TP), ortho-diphenols (ORT) and catechins (CAT)] in a large number of concentrates and purees from apple and peach fruits has been determined. The relationships TP/ORT, TP/CAT and ORT/CAT have also been calculated. TP content was found to be significantly higher in the concentrates than in the respective purees whereas CAT content was significantly higher in the puree. ORT was found to be higher in purees than in apple concentrates, but the opposite was observed for peaches. The relationships TP/ORT, TP/CAT and ORT/ CAT were higher for the concentrates than for the respective purees. In addition, values for ORT/CAT were higher for the peach products than for the respective apple products. The results show that these phenolic compound measurements enable differentiation between concentrates and purees, as well as between the fruit juices produced from them. The main advantage of measurements of total phenolic compounds is that they are easy to perform in a conventional laboratory, which makes them suitable for routine analysis.
引用
收藏
页码:355 / 359
页数:5
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