Sengun Ilkin, Yalcin Husniye Tansel, Terzi Yigit, Peker Aysegul Kirmizigul, Kilic Gulden, Ozturk Berna
Engineering Faculty, Food Engineering Department, Ege University, Izmir, Bornova 35100 Türkiye.
Science Faculty, Biology Department, Ege University, Izmir, 35100 Türkiye.
J Food Sci Technol. 2025 Sep;62(9):1750-1763. doi: 10.1007/s13197-024-06143-5. Epub 2024 Nov 25.
The probiotic characteristics of yeasts isolated from fermented turnip juices collected from different cities of Türkiye were investigated. Most of the isolates were identified as (45%), (20%), (15%) and (12.5%). Regarding their probiotic properties, all strains showed viability at pH 3 and 4, and 24 strains belonging to , and were tolerant to pH 2, 3 and 4. All strains showed tolerance to bile salts (55.92-139.17%), phenol (43.88-130.46%), pepsin (66.32-111.70%) and pancreatin (86.19-116.10%). The proteolytic activity of all but 4 strains ranged from 0.001 to 0.077 mg tyrosine/mL, and they did not exhibit β-galactosidase activity. All strains were viable in the presence of 1.5% NaCl, and approximately 60% were viable in the presence of 10% NaCl. Their cell surface hydrophobicity towards xylene varied between 1.53% and 56.22%. LM4 showed the highest hydrophobicity. The auto-aggregation of the strains varied from 23.01 to 63.91%, while the co-aggregation ability with Typhimurium varied from 1.64 to 51.69%, with significant differences between the strains. Thus, the yeast strains from fermented turnip juice exhibit probiotic potential and can be used to develop new probiotic food products or supplements.
The online version contains supplementary material available at 10.1007/s13197-024-06143-5.
对从土耳其不同城市采集的发酵萝卜汁中分离出的酵母的益生菌特性进行了研究。大多数分离株被鉴定为（45%）、（20%）、（15%）和（12.5%）。关于它们的益生菌特性，所有菌株在pH 3和4时均具有活力，属于、和的24株菌株对pH 2、3和4具有耐受性。所有菌株均对胆盐（55.92 - 139.17%）、苯酚（43.88 - 130.46%）、胃蛋白酶（66.32 - 111.70%）和胰酶（86.19 - 116.10%）具有耐受性。除4株菌株外，所有菌株的蛋白水解活性范围为0.001至0.077毫克酪氨酸/毫升，且它们未表现出β - 半乳糖苷酶活性。所有菌株在1.5% NaCl存在下均具有活力，约60%的菌株在10% NaCl存在下具有活力。它们对二甲苯的细胞表面疏水性在1.53%至56.22%之间变化。LM4表现出最高的疏水性。菌株的自聚集率在23.01%至63.91%之间变化，而与鼠伤寒沙门氏菌的共聚集能力在1.64%至51.69%之间变化，菌株之间存在显著差异。因此，来自发酵萝卜汁的酵母菌株具有益生菌潜力，可用于开发新的益生菌食品或补充剂。
在线版本包含可在10.1007/s13197 - 024 - 06143 - 5获取的补充材料。
