Investigation of the physicochemical properties of tomato powder prepared by spray drying technology

S M Anisuzzaman and Moloney, Baxerchrist (2022) Investigation of the physicochemical properties of tomato powder prepared by spray drying technology. In: INTERNATIONAL CONFERENCE ON FOOD SCIENCE AND NUTRITION 2022 ” Future Food: Emerging Trends, Health and Diversity”, 24th-25th August 2022., Online.

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The aim of this study was to investigate the effects of additives as well as operational parameters on the physicochemical quality of tomato powder produced through the spray-drying method. This experiment utilised maltodextrin (MD) and gum Arabic (GA) as carrier agents at concentrations of 10%, 20%, 30%, 40%, and 50%, with spray drying inlet temperatures ranging from 140 to 180oC. Powder yield, moisture content, colour characteristics, particle size, and morphology of spray-dried tomato powders were all assessed. The results showed that the stability of tomato powder is significantly enhanced at high intake temperatures and lower concentrations (at 10%, 180oC) with a composition of 50:50 MD and GA. According to the powder analysis, the product has between 5.82 and 6.25% moisture content. The maximum yield achieved was 35.10%, and the colour L*, a*, and b* values range between 85.47 to 92.64, 3.28 to 6.18, and 10.50 to 26.13, respectively. The highest antioxidant activity measured by the IC50 value was 15.35, while the lowest was zero. The result showed that at a higher temperature and greater concentration of a single additive combination, powder characteristics are more likely to exhibit a higher yield and lower moisture content. For colour index, however, higher temperatures and a lesser quantity of additives are desirable. This also compensates for the antioxidant action at low doses, while high temperatures boost the activity overall. The investigation revealed that carrier agents considerably enhanced powder properties such as moisture content and process yield.

Item Type: Conference or Workshop Item (Paper)
Keyword: Carrier agents , Maltodextrin , Gum arabic , Spray drying , Hygroscopicity
Subjects: S Agriculture > SB Plant culture > SB1-1110 Plant culture > SB183-317 Field crops Including cereals, forage crops, grasses, legumes, root crops, sugar plants, textile plants, alkaloidal plants, medicinal plants
T Technology > TA Engineering (General). Civil engineering (General) > TA1-2040 Engineering (General). Civil engineering (General)
Department: FACULTY > Faculty of Engineering
Date Deposited: 09 Mar 2023 16:30
Last Modified: 22 May 2023 11:43

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