Lime Juice Enhances Calcium Bioaccessibility from Yogurt Snacks Formulated with Whey Minerals and Proteins

Abstract

Yogurt-based snacks originally with a calcium content between 0.10 and 0.17 mmol/g dry matter were enriched with a whey mineral concentrate and whey protein isolate or hydrolysate. Whey mineral concentrate was added to increase the total amount of calcium by 0.030 mmol/g dry matter. Calcium bioaccessibility was determined following an in vitro protocol including oral, gastric, and intestinal digestion, with special focus on the effect of lime juice quantifying calcium concentration and activity. Calcium bioaccessibility, defined as soluble calcium divided by total calcium after intestinal digestion amounted to between 17 and 25% for snacks without lime juice. For snacks with lime juice, the bioaccessibility increased to between 24 and 40%, an effect attributed to the presence of citric acid. Citric acid increased the calcium solubility both from whey mineral concentrate and yogurt, and the citrate anion kept supersaturated calcium soluble in the chyme. The binding of calcium in the chyme from snacks with or without lime juice was compared electrochemically, showing that citrate increased the amount of bound calcium but with lower affinity. The results indicated that whey minerals, a waste from cheese production, may be utilized in snacks enhancing calcium bioaccessibility when combined with lime juice.

Production of yogurt from goat and sheep milk with a fruit and berry concentrate

“…There are various techniques of encapsulation of juices or concentrates (hydrophilic fillers) into polymers of natural origin and the drip method, in this case, is the most promising [13] Work [14] notes the relevance of the drip method for obtaining capsules but this work is associated with the production of gelatin capsules.…”

Лаймовый Сок — Уникальный Напиток Здоровья И Долголетия

“…Доказанный факт, что употребление сока лайма вместе с продуктами, содержащими кальций, способствует лучшему усвоению минерала [10] , благодаря которому укрепляются кости и зубы. Предупредите развитие остеопороза, введя в ежедневный рацион полезный лаймовый фреш!…”