...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Revista Brasileira de Fruticultura >Efeito do congelamento e do tempo de estocagem da polpa de acerola sobre o teor de carotenóides
【24h】

Efeito do congelamento e do tempo de estocagem da polpa de acerola sobre o teor de carotenóides

机译：针叶果肉冷冻保存时间对类胡萝卜素含量的影响。

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Acerola (Malpighia glabra L.) is one of the main natural sources of vitamin C and is an excellent source of carotenoids. Due to the vitamin potential of carotenoids, and their possible association with the carcinogenesis process, there is an increasing concern of the scientific community about their chemistry and stability in food. The objective of this research was to study the effect of commercial freezing and storage procedures on the carotenoid contents (in respect to the vitamin A potential) of acerola pulp. The acerola pulp was processed in a small industry in Fortaleza, CE. The carotenoid contents were determined on freshly processed pulp (control), on recently frozen pulp and over time on stored frozen pulp. The b-carotene content of the frozen pulp has decreased 20% after four months of storage, when compared to the control content (7.09 μg/g), but no significant differences existed in the subsequent months. The b-criptoxantin content (1.7 μg/g) decreased 37% in the first month of storage, remaining practically constant until eleventh month, when it totalized a 62% drop. The content of a-carotene in pulp was small. About the vitamin A potential, the control pulp showed 1338 UI/100g, corresponding to, approximately, 25% of the daily recommendation for this vitamin. After freezing, vitamin A potential was maintained until the third month of storage, when a significant drop of 20% was observed. No significant alterations were detected in the subsequent months until the end of the evaluation period.
机译：Acerola（Malpighia glabra L.）是维生素C的主要天然来源之一，也是类胡萝卜素的极好来源。由于类胡萝卜素具有维生素潜在性，并且可能与致癌过程有关，因此科学界越来越关注它们的化学性质和食品稳定性。这项研究的目的是研究商业冷冻和存储程序对针叶果肉中类胡萝卜素含量（相对于维生素A潜力）的影响。针叶木浆在CE的Fortaleza的一个小型工业中进行了加工。在新鲜加工的果肉（对照），最近冷冻的果肉和随时间储存的冷冻果肉上确定类胡萝卜素含量。与对照含量（7.09μg/ g）相比，冷冻果肉在储存四个月后的b-胡萝卜素含量降低了20％，但在随后的几个月中没有显着差异。在储存的第一个月内，b- criptoxantin含量（1.7μg/ g）下降了37％，直到第11个月几乎保持恒定，总共下降了62％。纸浆中α-胡萝卜素含量低。关于维生素A的潜力，对照果肉显示1338 UI / 100g，大约相当于该维生素每日推荐量的25％。冷冻后，维生素A的潜力一直保持到储存的第三个月，此时观察到显着下降20％。在随后的几个月中，直到评估期结束之前，均未发现重大变化。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号