Etikett: recovery

Study: Whey water recovered up to 47 per cent

The study demonstrates the viability for recovering good quality water from whey, a highly pollutant cheese-making by-product, to be reused in cleaning-in-place systems. The results obtained in this study indicate that by using a combined ultrafiltration and reverse osmosis system, 47% of water can be recovered. This system generates protein and lactose concentrates, by-products that once spray-dried fulfill commercial standards for protein and lactose powders. The physicochemical and microbiological quality of the recovered permeate was also analyzed, suggesting suitable properties to be reused in the cleaning-in-place system without affecting the quality and safety of the product manufactured on the cleaned equipment.

The findings provide scientific evidence to promote the safety of reuse of reconditioned water in food processing plants, contributing to building a culture of water conservation and sustainable production throughout the food supply chain.

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Children benefit from whey in malnutrition treatment

A clinical study of ready-to-use supplementary food (RUSF) has shown for the first time that the addition of whey ingredients speeds up the recovery of moderately malnourished children.

Published in the American Journal of Clinical Nutrition, the study summarises the findings from trials conducted by US-based food aid organisation Project Peanut Butter in Malawi and Mozambique.

Recovery was evaluated by measuring the circumference of the children’s mid-upper arm. This showed that children who received the novel whey-containing RUSF had a recovery rate of 83.9% – significantly higher than the 80.5% recovery rate of children who received the soya-containing RUSF. A higher growth rate was also recorded among the children in the whey-containing RUSF group.

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