Rules For Quality Storage Of Grapes

Аннотация

An in-depth study of the biological and physiological processes involved in the storage of grapes, as well as a clear idea about them, is important for the quality of the product. To preserve the quality of grapes, it is necessary to know what processes take place in them during storage and what factors of the external environment affect the course of these processes. The fact that grapes do not lose their quality over some time and lose minimal weight determines their durability. Storage resistance of grapes is determined by their shelf life in favourable conditions. The ability of grapes to be stored in a certain zone and season, as well as in agro-technical and technological regimes is called preservation. Storage is usually defined as the percentage of the weight loss of a product during storage. KEYWORDS Physical and chemical composition of grapes, biological and physiological processes in storage, environmental factors, storage resistance of grapes, sucrose, glucose, evaporation rate, evaporation rate, cooling temperature of fruits, respiration, self - self-heating. The US A Journals Volume 03 Issue 05-2021 13 The American Journal of Agriculture and Boimedical Engineering IMPACT FACTOR (ISSN – 2689-1018) 2021: 5. 554 Published: May 30, 2021| Pages: 13-16 Doi: https://doi.org/10.37547/tajabe/Volume03Issue05-03 OCLC - 1121105746 INTRODUCTION grapes in a single variety are specific to a particular variety, such grapes are well preserved. Restriction of grapes from their The main task of preserving grapes is to specific properties reduces their shelf life. preserve their physical and chemical composition, ie appearance, colour, taste, When grapes are stored, they do not nutritional value and other properties. accumulate valuable nutrients and Therefore, proper and scientific organization flavourings, but decompose. After the late of grape storage solves the problem of varieties are cut, the above substances providing the population with this product accumulate for some time and then begin to throughout the year. An in-depth study of the decompose. biological and physiological processes involved in the storage of grapes, as well as a As fruits ripen, their sugar content increases clear idea about them, is important for the and their acidity and nutrient content quality of the product [1-3]. To preserve the decrease. During the ripening period, the ratio quality of grapes, it is necessary to know what of sucrose to monosaccharide varies: during processes take place in them during storage storage, the amount of fructose increases, the and what factors of the external environment amount of glucose and sucrose decreases. As affect the course of these processes. The fact the grapes ripen, the amount of sugar that grapes do not lose their quality over decreases due to their respiration. The some time and lose minimal weight sweetness of grapes is determined by the determines their durability. The ability of amount of fructose, although the amount of grapes to resist microorganisms is called their sucrose and glucose is higher than that of immunity. Products that are not resistant to fructose, grapes are not as sweet. these two properties are closely related to During storage, the acidity of grapes changes each other and are usually susceptible to relative to sugar. By the end of the storage microorganisms. period, the fruits are much sweeter and then THE MAIN PART tasteless as a result of the loss of acids. Pectin substances break down during the storage of Storage resistance of grapes is determined by grapes to form soluble pectins, which cause their shelf life in favourable conditions. The the grapes to soften. Physical properties of ability of grapes to be stored in a certain zone grapes and technological and chemical control and season, as well as in agro-technical and of their storage It is important to know their technological regimes, is called preservation. physical properties during storage, the use of Storage is usually defined as the percentage these properties in the storage on a scientific of the weight loss of a product during storage. basis. The physical properties of grapes are of In general, the storage resistance of grapes is great importance in their collection, their natural feature. Therefore, the same transportation and storage. variety can be stored differently in different conditions [4-6]. The shelf life of grapes The physical properties of grapes include depends on many factors. If the size, density water evaporation, perspiration, thermal of grains, thickness, shape and integrity of the properties, mechanical toughness, shedding, skin, colour and other characteristics of the porosity, and more. During storage, the The US A Journals Volume 03 Issue 05-2021 14 The American Journal of Agriculture and Boimedical Engineering IMPACT FACTOR (ISSN – 2689-1018) 2021: 5. 554 Published: May 30, 2021| Pages: 13-16 Doi: https://doi.org/10.37547/tajabe/Volume03Issue05-03 OCLC - 1121105746 products e