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<p>In this study, the effects of cow, buffalo, ewe, and goat milk on the microbiological, physicochemical, sensory properties, and volatile component profile of kefir were examined during storage. Key microbial counts, including lactic cocci, lactic bacilli, and yeast, varied among kefirs, with lactic bacilli and lactic cocci decreasing over time, while yeast counts increased. The titratable acidity ranged from 1.12 to 1.16%, and pH values varied between 4.51 and 4.83. Sensory analysis showed that cow milk kefir received the highest consumer appreciation, while goat milk kefir was least favored. Notably, ewe milk kefir contained the highest benzoic acid content. Principal component analysis identified distinct clusters in the volatile profiles of the kefirs. Our results suggest that buffalo and ewe milk kefirs may be viable alternatives to cow milk kefir, with potential for consumer acceptance based on sensory properties.</p>

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Comparison of different animal milks on microbiological, physicochemical, sensory properties, and volatile component profile of Kefir

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年5月30日

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  • Hacer Meral-Aktaş,
  • Bayram Ürkek,
  • Haktan Aktaş,
  • Cemalettin Baltacı,
  • Bülent Çetin,
  • Mustafa Şengül

摘要

In this study, the effects of cow, buffalo, ewe, and goat milk on the microbiological, physicochemical, sensory properties, and volatile component profile of kefir were examined during storage. Key microbial counts, including lactic cocci, lactic bacilli, and yeast, varied among kefirs, with lactic bacilli and lactic cocci decreasing over time, while yeast counts increased. The titratable acidity ranged from 1.12 to 1.16%, and pH values varied between 4.51 and 4.83. Sensory analysis showed that cow milk kefir received the highest consumer appreciation, while goat milk kefir was least favored. Notably, ewe milk kefir contained the highest benzoic acid content. Principal component analysis identified distinct clusters in the volatile profiles of the kefirs. Our results suggest that buffalo and ewe milk kefirs may be viable alternatives to cow milk kefir, with potential for consumer acceptance based on sensory properties.