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‘Yellow is good for you’: Consumer perception and acceptability of fortified and biofortified cassava products

机译:“黄色对您有好处”:消费者对强化和生物强化木薯产品的认知和接受度

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摘要

Vitamin A, an essential micronutrient for health, can be obtained from various food sources including cassava products made from either traditional white cassava varieties fortified with red palm oil containing provitamin A, or new high provitamin A biofortified yellow cassava varieties. Both products have a similar yellow appearance due to the coloured pigmentation of provitamin A. Using a range of methods to provide a comprehensive understanding of sensory acceptability (blind triangle test, sensory profiling, hedonic preference that included Check-all-that-applies and Just-about-right tests), we tested the acceptability and nutritional perception of traditional West-African food dough-like products (eba and fufu) made from biofortified, fortified, or control products made with non-fortified white cassava (n = 7) at three suburban locations near Ibadan, Nigeria on a total of 122 consumers. Biofortified, fortified, and control products could be differentiated blindly confirming that products clearly differed with respect to other sensory characteristics than appearance. Overall biofortified products were better accepted than control and fortified ones. Three classes of consumer preference were identified based on the dislike for control and fortified products, which indicated that acceptance of biofortified products was not a hindrance. On the contrary the traditional fortified product had poorer acceptance and this was due to its less desirable sensory characteristics as demonstrated by Just-about-right Penalty analysis. A majority of consumers (85%) had previous knowledge of biofortified cassava. Consumers associated ‘yellow colour’ with ‘good for eyesight’, ‘good for children’s health’ and ‘new’. More nutritional benefits were attributed to biofortified than fortified products although they had similar provitamin A contents and this demonstrates a bias. We suggest that nutrition promotion campaigns to improve the vitamin A status should also encompass all natural sources of provitamin A, including biofortified and traditional fortified products.
机译:维生素A是健康必不可少的微量营养素,可从多种食品来源中获得,包括木薯产品,这些木薯产品是由传统的白色木薯品种制成的,其中包含加有维生素原A的红棕榈油,或者是新的高维生素原A生物强化的黄色木薯品种。由于维生素原A的着色,两种产品的黄色外观相似。使用多种方法全面了解感官接受性(盲三角测试,感官特征分析,享乐偏好,包括适用于所有检查和-大约正确的测试),我们测试了由非强化白木薯(n = 7)制成的生物强化,强化或对照产品制成的传统西非食品面团状产品(eba和fufu)的可接受性和营养感知在尼日利亚伊巴丹附近的三个郊区,共有122位消费者。可以盲目区分生物强化,强化和对照产品,从而确认产品在外观上的其他感官特征上明显不同。总体而言,生物强化产品比对照和强化产品更好。根据对控制产品和强化产品的不喜欢程度,确定了三类消费者偏好,这表明生物强化产品的接受不是障碍。相反,传统的强化产品的接受度较差,这是由于如“恰到好处”的罚分分析所显示的,其不太理想的感官特性。大多数消费者(85%)以前都对生物强化木薯有所了解。消费者将“黄色”与“视力有益”,“对儿童健康有益”和“新”相关联。尽管强化食品比强化食品具有更多的营养益处,但它们具有相似的维生素原A含量,这表明存在偏见。我们建议,改善维生素A状况的营养促进运动也应包括维生素A的所有天然来源,包括生物强化和传统强化产品。

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