ABSTRACT
The purpose of this study was to assess the quality of juices manufactured and sold for immediate consumption in Dar es Salaam Municipalities, Tanzania. The assessments were based on identifying the levels of preservatives, hygienic practices in manufacturing industries and determine microbiological quality of the juices. High Performance Liquid Chromatographic (HPLC) method was modified and validated for determination of benzoic and sorbic acids, while direct titration method was used for quantitative estimation of total sulphur dioxide. Microbial quality was determined by counting viable microorganisms using plate count method and coliform determination method. There were a total of 110 juice samples from five different manufacturers. A total of 22 different types of juices in replicates of five. Results show that more than 72% of samples tested did not comply with Tanzanian standards for soft drinks because of the presence of exceeded levels of allowable preservatives (> 350mg/ml for sorbic and benzoic acids) and only 40% complied with labelling standard. Samples which were found to have higher than specified levels of preservatives did not show any microbial growth. It was observed that 63 % of microbial growth (for total bacterial count) was from those samples without preservatives. The major micro-organisms found in juices were Alicylobacillus and Lactobacillus spp. Therefore it is necessary for the Regulatory board to provide training on the effects of misuse of preservatives and education on hygienic procedures. It should also conduct inspections and increase efforts in enforcing laws to the manufactures.
SENKORO, Z (2021). Food Additives And Hygienic Status Of Flavoured Fruit Juices Manufactured In Dar Es Salaam, Tanzania. Afribary. Retrieved from https://tracking.afribary.com/works/food-additives-and-hygienic-status-of-flavoured-fruit-juices-manufactured-in-dar-es-salaam-tanzania
SENKORO, ZAWADIEL "Food Additives And Hygienic Status Of Flavoured Fruit Juices Manufactured In Dar Es Salaam, Tanzania" Afribary. Afribary, 14 May. 2021, https://tracking.afribary.com/works/food-additives-and-hygienic-status-of-flavoured-fruit-juices-manufactured-in-dar-es-salaam-tanzania. Accessed 23 Nov. 2024.
SENKORO, ZAWADIEL . "Food Additives And Hygienic Status Of Flavoured Fruit Juices Manufactured In Dar Es Salaam, Tanzania". Afribary, Afribary, 14 May. 2021. Web. 23 Nov. 2024. < https://tracking.afribary.com/works/food-additives-and-hygienic-status-of-flavoured-fruit-juices-manufactured-in-dar-es-salaam-tanzania >.
SENKORO, ZAWADIEL . "Food Additives And Hygienic Status Of Flavoured Fruit Juices Manufactured In Dar Es Salaam, Tanzania" Afribary (2021). Accessed November 23, 2024. https://tracking.afribary.com/works/food-additives-and-hygienic-status-of-flavoured-fruit-juices-manufactured-in-dar-es-salaam-tanzania