Background

Fruit and vegetable processing industries account for the largest segment of food waste which is produced worldwide. The disposal of this waste requires a huge capital investment, majority of which is the transportation costs. This results in dumping and burning of these wastes in open fields.

Scope and approach

In this review, we have focussed on the valorisation schemes to extract valuable biomolecules from pineapple on-farm and processing waste for food and therapeutics applications. Biorefinery approach has been highlighted for sustainable production of value added products.

Key findings and conclusion

The high content of carbohydrate (55%) in pineapple waste makes it an appropriate substrate for the production of valuable chemicals such as xylitol, xylooligosaccharides, lactic acid, succinic acid and others, which have potential application in the food industry. The enzyme, bromelain, which is present in pineapple, has potential for application in therapeutics as well as in the food industry. Such utilisation of waste could prove to be a better alternative in the mitigation of environmental problems and also to propose a novel method to produce valuable chemicals. Despite the opportunities, there are challenges in the valorisation of this waste, largely due to the poor understanding of its nutritional and economic value, gap in close-linked markets, logistics issues for plant scale-up. Since most of the research is limited to lab-scale studies, additional research is required to evaluate techno-economic feasibility of the processes involved in the bio-refinery with minimum environmental impact for effective transition to circular economy.

中文翻译：

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用于食品和治疗用途的菠萝废料的增值

背景

水果和蔬菜加工业占全球食物垃圾的最大部分。处置这些废物需要大量的资本投资，其中大部分是运输成本。这导致这些废物​​在露天场所倾倒和燃烧。

范围和方法

在这篇综述中，我们集中于从菠萝农场上提取有价值的生物分子以及用于食品和治疗应用的加工废物的增值方案。为了提高增值产品的可持续生产，生物炼油法得到了重视。

主要发现和结论

菠萝废料中的碳水化合物含量高（55％），使其成为生产有价值的化学物质（如木糖醇，木寡糖，乳酸，琥珀酸等）的合适基质，这些化学物质在食品工业中具有潜在的应用前景。菠萝蛋白酶存在于菠萝中，具有在治疗剂和食品工业中应用的潜力。在减少环境问题方面，这种废物利用可能被证明是更好的选择，并且可以提出一种生产有价值的化学品的新方法。尽管有这些机会，但这些废物的价值评估仍面临挑战，这主要是由于人们对其营养和经济价值的了解不足，紧密联系的市场存在差距，工厂规模扩大的物流问题。由于大多数研究仅限于实验室规模的研究，