Fars Agricultural and Natural Resources Research and Education Center, AREEO, Post Box: 7155863511, Shiraz, Fars, Iran.
Food Science and Technology, Islamic Azad University, Sarvestan, Fars, Iran.
Braz J Microbiol. 2023 Sep;54(3):1589-1601. doi: 10.1007/s42770-023-01074-3. Epub 2023 Jul 29.
One of the famous traditional confectionery products is Tahini halva. The aim of this study was the production of probiotic halva using free Lactobacillus acidophilus (FLA) and microencapsulated Lactobacillus acidophilus (MLA) with sodium alginate and galbanum gum as the second layer. The survival rate of MLA and FLA during heat stress, storage time, and simulation gastrointestinal condition in Tahini halva was assessed. The survival rates of MLA and FLA under heat stress were 50.13% and 34.6% respectively. During storage in Tahini halva, the cell viability loss was 3.25 Log CFU g and 6.94 Log CFU g for MLA and FLA, separately. Around 3.58 and 4.77 Log CFU g bacteria were reduced after 6 h of exposure in simulated gastrointestinal conditions, for MLA and FLA respectively. These results suggest that the use of alginate and galbanum gum is a promising approach to protecting L. acidophilus against harsh environmental conditions.
塔希尼乳香糖是著名的传统糖果产品之一。本研究旨在使用游离嗜酸乳杆菌(FLA)和微囊化嗜酸乳杆菌(MLA),以海藻酸钠和胡芦巴胶为第二层,生产益生菌乳香糖。评估 MLA 和 FLA 在热应激、储存时间和塔希尼乳香糖模拟胃肠道条件下的存活率。热应激下 MLA 和 FLA 的存活率分别为 50.13%和 34.6%。在塔希尼乳香糖储存过程中,MLA 和 FLA 的活菌数损失分别为 3.25 Log CFU g 和 6.94 Log CFU g。在模拟胃肠道条件下暴露 6 小时后,MLA 和 FLA 分别减少了 3.58 和 4.77 Log CFU g 细菌。这些结果表明,使用海藻酸钠和胡芦巴胶是保护嗜酸乳杆菌免受恶劣环境条件影响的一种有前途的方法。