Quality of refrigerated raw milk according to the bulk transport conditions

Q3 Agricultural and Biological Sciences
N. C. Felipus, S. A. B. Bajaluk, A. Thaler Neto, Deise Aline Knob, D. R. M. Alessio
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引用次数: 3

Abstract

Technical regulations that determine milk quality standards in Brazil establish the minimum criteria that the processing industry's raw material must present. These rules can challenge the logistics sector (transport) to maintain adequate milk conservation levels. We aimed to evaluate the influence of bulk transport and storage conditions on refrigerated raw milk quality. The experiment was carried out in a dairy industry in Santa Catarina State. Information and samples of refrigerated raw milk were collected from dairy farms, from isothermal compartments of milk trucks, and from the industry's storage silo. These samples were submitted to microbiological analysis, somatic cell count (SCC), and physicochemical analysis. The results were evaluated by ANOVA and multivariate analysis (factor analysis). The transport of raw milk in bulk and the transfer of raw material to the industrial silo worsened the milk's microbiological quality (p < 0.0001) for standard plate count (SPC) and psychrotrophic microorganism count (PMC), without affecting, the physicochemical characteristics of the milk (p > 0.05). Poor hygienic conditions in milk storage rooms, in the refrigeration bulk tanks of the dairy farms, and during the transport, as well as the transport on longer routes, were related to higher SPC and psychrotrophic count while receiving milk by the dairy industry with higher temperatures was only associated with higher SPC.
冷藏原料奶的质量根据散装运输条件而定
在巴西,确定牛奶质量标准的技术法规确立了加工行业原料必须达到的最低标准。这些规则对物流部门(运输)保持足够的牛奶保存水平提出了挑战。我们旨在评估散装运输和储存条件对冷藏原料奶品质的影响。这项实验是在圣卡塔琳娜州的一家乳品厂进行的。从奶牛场、牛奶车的等温隔间和行业的储存库中收集了冷藏原料奶的信息和样本。这些样品进行了微生物分析、体细胞计数(SCC)和理化分析。采用方差分析(ANOVA)和多因素分析(factor analysis)对结果进行评价。原料奶的散装运输和原料转移到工业筒仓使牛奶的微生物品质(标准平板计数(SPC)和心营养微生物计数(PMC))恶化(p < 0.0001),但对牛奶的理化特性没有影响(p > 0.05)。牛奶储存室、奶牛场的冷藏散装罐、运输过程中的卫生条件差,以及长途运输,与较高的SPC和精神营养计数有关,而乳制品行业在较高温度下接收牛奶仅与较高的SPC有关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Acta Scientiarum. Animal Sciences
Acta Scientiarum. Animal Sciences Agricultural and Biological Sciences-Food Science
CiteScore
1.60
自引率
0.00%
发文量
45
审稿时长
9 weeks
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