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Research of the Moisture Transfer Processes in Gingerbread with Fruit Filling Produced using Various Types of Modified Starch

https://doi.org/10.36107/spfp.2019.187

Abstract

Flour confectionery products with a shelf life of 1 month and more unstable are the most popular type of sweet among consumers. Gingerbread cookies are the second most popular type in this group of products - 16% in the structure of consumption according to the Federal State Statistics Service of the Russian Federation. The shelf life of raw gingerbread with filling depends on the speed of their microbiological spoilage, due to the intensity and direction of the moisture transfer processes. With a high rate of moisture migration, gingerbread cookies quickly become stale, and a low rate of moisture transfer processes increases the risk of mold. We studied the dynamics of changes in the mass fraction of moisture and water activity in various parts of raw gingerbread with filling - in baked semi-finished product and in filling during storage for 3.5 months. The effect of modified starches of three types was evaluated: esterified with phosphate groups (E 1412), acetyl groups (E 1422) and with a combination of phosphate and hydroxypropyl groups (E 1442) on the water-holding properties in fillings. Moisture losses in the filling made with starch esterified with a combination of phosphate and hydroxypropyl groups are much less - 2-2.5 times than when using starches esterified with phosphate or acetyl groups. The rate of the moisture transfer process for products made using different types of starch was calculated by the diffusion coefficient. It was revealed that the moisture transfer rate is minimal for starch E 1442, as evidenced by the lowest diffusion coefficient - 1.097. A scheme is proposed for predicting the preservation of raw gingerbread with a fruit filling based on the results of a study of moisture transfer processes and the characteristics of water-retaining additives (modified starch). The process diagram is presented as a set of subsystems with an indication of the parameters and factors affecting the rate of moisture transfer. The results obtained make it possible to predict the risks of moldiness of gingerbread with fruit filling during storage.

About the Authors

N. B. Kondratyev
VNIIKP is a branch of FGBNU “FNTS of food systems named after. V.M. Gorbatov» RAS
Russian Federation


E. V. Kazancev
VNIIKP is a branch of FGBNU “FNTS of food systems named after. V.M. Gorbatov» RAS
Russian Federation


M. V. Osipov
VNIIKP is a branch of FGBNU “FNTS of food systems named after. V.M. Gorbatov» RAS
Russian Federation


N. A. Petrova
VNIIKP is a branch of FGBNU “FNTS of food systems named after. V.M. Gorbatov» RAS
Russian Federation


O. S. Rudenko
VNIIKP is a branch of FGBNU “FNTS of food systems named after. V.M. Gorbatov» RAS
Russian Federation


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Review

For citations:


Kondratyev N.B., Kazancev E.V., Osipov M.V., Petrova N.A., Rudenko O.S. Research of the Moisture Transfer Processes in Gingerbread with Fruit Filling Produced using Various Types of Modified Starch. Storage and Processing of Farm Products. 2019;(4):35-46. (In Russ.) https://doi.org/10.36107/spfp.2019.187

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ISSN 2072-9669 (Print)
ISSN 2658-767X (Online)