Mbye Mustapha, Ayyash Mutamed, Abu-Jdayil Basim, Kamal-Eldin Afaf
Department of Food Science, United Arab Emirates University, Al-Ain, United Arab Emirates.
Department of Petroleum & Chemical Engineering, United Arab Emirates University, Al-Ain, United Arab Emirates.
Front Nutr. 2022 Apr 19;9:868320. doi: 10.3389/fnut.2022.868320. eCollection 2022.
Numerous people in African, Middle Asian, Middle Eastern, and Gulf Cooperation Council (GCC) countries highly value camel milk (CM) as it plays a vital role in their diet. The protein composition of CM as well as the structure of its casein micelles differs significantly from bovine milk (BM). Cheeses made from CM have a weak curd and soft texture compared to those made from BM. This review article presents and discusses the effect of milk protein composition, processing conditions (pasteurization and high-pressure treatment), and coagulants (camel chymosin, organic acids, plant proteases) on the quality of CM cheeses. CM cheese's weak texture is due to compositional characteristics of the milk, including low κ-casein-to-β-casein ratio (≈0.05 in CM vs. ≈0.33 in BM), large micelle size, different whey protein components, and higher proteolytic activity than BM. CM cheese texture can be improved by preheating the milk at low temperatures or by high pressure. Supplementing CM with calcium has shown inconsistent results on cheese texture, which may be due to interactions with other processing conditions. Despite their structure, CM cheeses are generally well liked in sensory studies.
非洲、中亚、中东和海湾合作委员会(GCC)国家的许多人高度重视骆驼奶(CM),因为它在他们的饮食中起着至关重要的作用。CM的蛋白质组成及其酪蛋白胶束的结构与牛奶(BM)有显著差异。与用BM制成的奶酪相比,用CM制成的奶酪凝乳较弱,质地较软。这篇综述文章介绍并讨论了乳蛋白组成、加工条件(巴氏杀菌和高压处理)以及凝乳剂(骆驼凝乳酶、有机酸、植物蛋白酶)对CM奶酪品质的影响。CM奶酪质地较弱是由于牛奶的成分特性,包括低κ-酪蛋白与β-酪蛋白比率(CM中约为0.05,而BM中约为0.33)、胶束尺寸大、乳清蛋白成分不同以及比BM更高的蛋白水解活性。通过在低温下预热牛奶或通过高压可以改善CM奶酪的质地。在CM中添加钙对奶酪质地的影响结果不一致,这可能是由于与其他加工条件的相互作用。尽管结构不同,但在感官研究中,CM奶酪总体上很受欢迎。