Department of Food Science and Technology, Oregon State University, Corvallis 97331.
Department of Food Science and Technology, Oregon State University, Corvallis 97331.
J Dairy Sci. 2019 Jan;102(1):164-176. doi: 10.3168/jds.2018-14964. Epub 2018 Nov 1.
Bloomy rind cheeses, including Camembert and related varieties, can be produced using alternative processes that vary based on milk preacidification, cutting, curd handling, and ripening parameters. Modification of these parameters creates distinct cheeses such as lactic curd, stabilized curd, and hybrids of the two. The objective of this study was to determine the influence of 5 Camembert-type cheese recipes on the composition and characteristics during ripening. Five varieties of Camembert-type cheese were produced: (1) lactic curd, (2) sweet curd, (3) washed curd, (4) solubilized curd, and (5) stabilized curd. Cheeses were aged at 13°C for 10 d, during the mold growth phase, and 7°C from d 11 until 50. Key quality metrics including texture development, pH (center and surface), and color were monitored throughout shelf-life. Compositional evaluation (d 5; fat, protein, moisture, salt, and minerals) grouped cheeses into 3 categories: (1) lactic curd, (2) sweet and washed curd, and (3) solubilized and stabilized curd. The lactic curd and stabilized curd were consistently the most different varieties for composition and quality metrics. Moisture content of Camembert-type varieties ranged from 53.15 to 57.99%, Ca ranged from 0.23 to 0.45%, and P ranged from 0.21 to 0.40%. All varieties followed the expected pH evolution on the rind and in the paste with the pH of the rind reaching 7 by d 10, and paste pH reaching 7 between 35 and 50 d. The displacement of the paste (distance traveled upon cutting) for the lactic curd was the greatest among the 5 varieties, reaching an average of 27 ± 1.9 mm (mean ± standard error) after 50 d of ripening and 60 min of flow time. The stabilized curd on the other hand traveled the shortest distance, reaching an average of 4 ± 0.4 mm at the same time point. Browning, considered a defect in mold-ripened cheeses, was observed in all varieties, but was most substantial for lactic curd (lightness, L*, decreased from 87.19 to 68.58). Based on these quality metrics the shelf-life of these recipes was estimated with the lactic curd having the shortest, and the stabilized curd having the longest. Examining Camembert-type cheese quality metrics for these 5 varieties can assist cheesemakers during recipe formulation and selection of cheese-making practices to achieve optimum product quality.
花皮软质奶酪,包括卡门培尔奶酪和相关品种,可以使用不同的工艺生产,具体取决于牛奶的预酸化、切割、凝乳处理和成熟参数。这些参数的修改会产生不同的奶酪,如乳酸凝乳、稳定凝乳和两者的混合物。本研究的目的是确定 5 种卡门培尔奶酪配方在成熟过程中对组成和特性的影响。生产了 5 种卡门培尔奶酪:(1)乳酸凝乳,(2)甜凝乳,(3)洗浸凝乳,(4)溶解凝乳和(5)稳定凝乳。奶酪在 13°C 下老化 10 天,在霉菌生长阶段,从第 11 天到第 50 天在 7°C 下老化。在保质期内监测关键质量指标,包括质地发展、pH 值(中心和表面)和颜色。组成评估(第 5 天;脂肪、蛋白质、水分、盐和矿物质)将奶酪分为 3 类:(1)乳酸凝乳,(2)甜凝乳和洗浸凝乳,(3)溶解凝乳和稳定凝乳。乳酸凝乳和稳定凝乳在组成和质量指标上始终是最不同的品种。卡门培尔奶酪品种的水分含量为 53.15%至 57.99%,Ca 含量为 0.23%至 0.45%,P 含量为 0.21%至 0.40%。所有品种的外皮和糊状物的 pH 值都遵循预期的变化,外皮的 pH 值在第 10 天达到 7,糊状物的 pH 值在 35 至 50 天之间达到 7。5 种品种中,乳酸凝乳的糊状物位移(切割后移动的距离)最大,在成熟 50 天后,流动时间为 60 分钟时,达到平均 27±1.9mm(平均值±标准误差)。另一方面,稳定凝乳的移动距离最短,在同一时间点达到平均 4±0.4mm。在所有品种中都观察到褐变,这被认为是模具成熟奶酪的缺陷,但在乳酸凝乳中最为明显(亮度,L*值从 87.19 下降到 68.58)。根据这些质量指标,估计这些配方的保质期,乳酸凝乳最短,稳定凝乳最长。检查这 5 种卡门培尔奶酪品种的质量指标可以帮助奶酪制造商在配方制定和奶酪制作实践的选择中实现最佳产品质量。