全世界有超过20亿人缺乏微量营养素,并存在区域性的特定缺陷。用微量营养素强化食品已成为提高公众健康的行业标准。双壳贝类(例如,牡蛎、蛤蜊和贻贝)是地球上最可持续的动物蛋白来源,市场正在迅速增长,自1980年以来,中国的产量增长了1000倍,达到人均每年36 公斤的消费水平。双壳类动物的独特之处在于,它们在生命末期所消耗的微量营养素会被人类消化,因为人类能消化包括肠道在内的整个生物体。

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剑桥大学动物学系的David F. Willer*、David C. Aldridge开发了一种新型微胶囊载体,为双壳贝类提供微量营养素,并针对最佳尺寸、形状、浮力和适口性进行了量身定制,证明强化双壳贝类在解决人类营养缺乏方面的潜力。以3%的初始剂量喂食维生素A和D微胶囊仅8 小时,牡蛎组织内的维生素含量即有所提高。一份两个这样的双壳贝类就能提供足够的维生素A和D以满足人类每日推荐摄入量(Recommended Daily Allowances,RDAs)。这项技术的推广及其在其他双壳贝类动物(包括蛤蜊和贻贝)中的应用可能会提供一种低成本、高度可持续的机制,有助于解决全球营养缺乏问题。

Abstract

Vitamin Bullets. Microencapsulated Feeds to Fortify Shellfish and Tackle Human Nutrient Deficiencies

David F. Willer*, David C. Aldridge

Over two billion people worldwide are micronutrient deficient, with regionally specific deficiencies. Fortification of food with micronutrients has become an industry standard for enhancing public health. Bivalve shellfish (e.g., oysters, clams, and mussels) provide the most sustainable source of animal protein on the planet, and the market is rapidly growing—with production in China increasing 1,000-fold since 1980 to an annual 36 kg capita1 consumption level. Bivalves are also unique in that micronutrients consumed at their end-life stage will be digested by humans, as humans consume the entire organism including the gut. We have developed a novel microencapsulated vehicle for delivering micronutrients to bivalves, tailored for optimal size, shape, buoyancy, and palatability, demonstrating the potential of fortified bivalves to tackle human nutrient deficiencies. Oysters fed vitamin A and D microcapsules at a 3% initial dosage for just 8 h had elevated tissue vitamin content. A serving of just two such bivalves provides enough vitamin A and D to meet human dietary RDAs. Scale-up of this technology and application to other bivalve species including clams and mussels could provide a low-cost and highly sustainable mechanism to contribute toward tackling nutrient deficiencies globally.

该文章《Vitamin Bullets. Microencapsulated Feeds to Fortify Shellfish and Tackle Human Nutrient Deficiencies》于《Frontiers in Nutrition》2020年7月出版。

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为进一步促进动物源食品科学的发展,带动产业的技术创新,更好的保障人类身体健康和提高生活品质,北京食品科学研究院和中国食品杂志社在成功召开“2019年动物源食品科学与人类健康国际研讨会(宁波)”的基础上,将与青海大学农牧学院2020年10月22-23日在西宁共同举办“2020年动物源食品科学与人类健康国际研讨会”。研讨会将就肉、水产、禽蛋、乳制品等动物源食品科学基础研究、现代化加工技术,贮藏、保鲜及运输,质量安全与检测技术,营养及风味成分分析,副产物综合利用,法律、法规及发展政策等方面的重大理论研究展开深入探讨,交流和借鉴国外经验,为广大食品科研工作者和生产者提供新的思路,指明发展方向。

在此,我们诚挚的邀请您出席本次国际研讨会,共聚人脉、共享资源、共谋发展!