Abstract
We introduced a method of deep resources-economy reprocessing of fruit raw material. Based on the raw material fractionation at decreased temperatures the method results in the production of bioactive food stuffs, which are dry juice and refuse and natural water. The method includes the production of directly extracted juice and pulp refuse, juice evaporation in vacuum with the production of concentrate and natural water, and air drying the concentrate and the refuse. The method is realized for garden strawberry and cucurbit pulp. The mass concentration of solid in the fractions of cucurbit pulp is defined and the specific weight of the fractions are defined. It is shown that the solid of the cucurbit pulp is uniformly allocated between the fractions and amounts 34% for the dry juice, 31% for the dry refuse, and 35% for the natural water. Food and biological values of the cucurbit pulp fractions are determined. It is determined that the cucurbit includes silicium, nickel, and chromium. Silicium is contained only in dry fractions; nickel is present everywhere; chromium is discovered only in the natural water. Food and biological values of the cucurbit pulp are defined and their allocation between the fractions is determined. Separate components concentrations of the solid considerably differ between the fractions. Thus, two thirds of pulp protein is concentrated in the dry juice and a third is concentrated in the refuse. The natural water contains up to 90% of fat and sugar, from a half to two thirds of B-group vitamins, and the bulk of the mineral substances (K, Na, Ca, Mg, S, Co, Cu, Ni, Cr, and Zn), which concentration composes from 73% for potassium up to 100% for chromium.
Highlights
Different methods of fruit raw material reprocessing exist [1]
It is determined that the cucurbit includes silicium, nickel, and chromium
To receive the bioactive food stuffs, we explored the fruit raw material reprocessing by fractionation into dry juice and pulp refuse and natural water
Summary
Using optimum conditions allows receiving the stuffs with high food and biological values from the fruit raw material One of these methods is raw material drying realized for different courses of a power supply line (convection, spray-type, sublimation, etc.). We can separate the fruit raw material into two more bioactive fractions They are the dry juice, which contains soluble solid, and the dry pulp refuse including dietary fibers bulk. Realized at decreased temperatures the fractionation minimizes losses of its biological value and allows receiving the food stuffs, where the content of individual components essentially exceeds their content in the feed stock. To receive the bioactive food stuffs, we explored the fruit raw material reprocessing by fractionation into dry juice and pulp refuse and natural water.
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