Vitamin C and carotenoids in organic and conventional fruits grown in Brazil

被引：66

作者：

Cardoso, Pollyanna C. ^{[1
]}

Tomazini, Ana Paula B. ^{[2
]}

Stringheta, Paulo C. ^{[3
]}

Ribeiro, Sonia M. R. ^{[2
]}

Pinheiro-Sant'Ana, Helena M. ^{[2
]}

机构：

[1] Univ Fed Espirito Santo, Curso Nutr, BR-29500000 Alegre, Espirito Santo, Brazil

[2] Univ Fed Vicosa, Dept Nutr & Saude, BR-36571000 Vicosa, MG, Brazil

[3] Univ Fed Vicosa, Dept Tecnol Alimentos, BR-36571000 Vicosa, MG, Brazil

来源：

FOOD CHEMISTRY | 2011年 / 126卷 / 02期

关键词：

Organic farming; Conventional farming; Fruit culture; Ascorbic acid; Dehydroascorbic acid; Provitamin A; FOOD;

D O I：

10.1016/j.foodchem.2010.10.109

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

This study compared the concentration of vitamin C (ascorbic acid, AA, and dehydroascorbic acid, DHA) and carotenoids (lycopene and beta-carotene) between three fruits produced by organic and conventional farming. Vitamin C and carotenoids were analysed by high-performance liquid chromatography. The Student t-test (alpha = 5%) was applied to determine differences between the organic and conventional production systems. AA content was significantly higher in organic acerola (4023.39 mg/100 g) compared to its conventional production (2294.53 mg/100 g). Conversely, AA content was significantly higher in conventional strawberries (42.45 mg/100 g) than the organic ones (30.74 mg/100 g). The conventional production also showed significantly higher contents of DHA (persimmon: 7.50 mg/100 g vs. 0.96 mg/100 g) and beta-carotene (acerola: 6130.241 mu g/100 g vs. 2486.38 mu g/100 g) than the organic fruits. Lycopene was only detected in persimmons, but no significant difference was observed between farming systems. There was no evidence of the nutritional superiority of the organically grown fruits. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：411 / 416

页数：6

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