Abstract Fish roes are consumed globally as a delicacy and an important seafood-based source of macro and micro-nutrients that is intensively produced in Indonesia. The connective material holding the roes i.e. the skeins are also high in protein and therefore could be utilized as nutritious protein supplement for food products. However, the study of the skeins is scant and their complete nutritional composition and physical appearance have not been fully described. We examined the nutritional composition and chemical resilience of fish roe skeins from the flying fish (Hirundichthys oxycephalus) that are commonly found in temperate and tropical oceans. The air-dried skeins contained 72–74 % crude protein, high-quality protein composed of essential and most non-essential amino acids, and very low carbohydrate content. High macro and micro minerals, lipids, albeit at a low amount, composed of saturated and unsaturated fatty acids and water- and lipid-soluble vitamins were also present. The roe skeins were highly durable and resistant to nutrient decomposition through over-desiccation as well bacterial contamination by Escherichia coli. In current production practices, the roe skeins are discarded as food waste. Our study proved that the roe skeins are rich in the nutrients that are valued from chicken egg whites, but provided additional essential macro- and micro-nutrients while being highly durable and resistant to bacterial contamination.

中文翻译：

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飞鱼（Hirundichthys oxycephalus）未充分利用的鱼丝的营养成分：新的和更好的蛋白

摘要 鱼卵作为一种美味佳肴和重要的海产品中宏量和微量营养素的重要来源，在全球范围内被消费，在印度尼西亚密集生产。容纳鱼子的连接材料，即绞线也富含蛋白质，因此可用作食品的营养蛋白质补充剂。然而，对绞线的研究很少，其完整的营养成分和物理外观尚未完全描述。我们研究了温带和热带海洋中常见的飞鱼（Hirundichthys oxycephalus）鱼子串的营养成分和化学弹性。风干的绞肉含有 72-74% 的粗蛋白、由必需氨基酸和大多数非必需氨基酸组成的优质蛋白质，以及非常低的碳水化合物含量。高宏微矿物质，还存在由饱和和不饱和脂肪酸以及水溶性和脂溶性维生素组成的脂类，尽管含量很低。鱼子绞线非常耐用，并且可以抵抗过度干燥导致的营养分解以及大肠杆菌的细菌污染。在当前的生产实践中，鱼子串作为食物垃圾丢弃。我们的研究证明，鱼子绞线富含鸡蛋清中的重要营养成分，但提供额外的必需常量和微量营养素，同时具有高度耐用性和抗细菌污染性。鱼子绞线非常耐用，并且可以抵抗过度干燥导致的营养分解以及大肠杆菌的细菌污染。在当前的生产实践中，鱼子串作为食物垃圾丢弃。我们的研究证明，鱼子绞线富含鸡蛋清中的重要营养成分，但提供额外的必需常量和微量营养素，同时具有高度耐用性和抗细菌污染性。鱼子绞线非常耐用，并且可以抵抗过度干燥导致的营养分解以及大肠杆菌的细菌污染。在当前的生产实践中，鱼子串作为食物垃圾丢弃。我们的研究证明，鱼子绞线富含鸡蛋清中的重要营养成分，但提供额外的必需常量和微量营养素，同时具有高度耐用性和抗细菌污染性。