Replication Data for "Large-scale multivariate dataset on the characterization of microbiota diversity, microbial growth dynamics, metabolic spoilage volatilome and sensorial profiles of two industrially produced meat products subjected to changes in lactate concentration and packaging atmosphere"

Data provide detailed information on the diversity of bacterial communities present on 576 samples of raw pork or poultry sausages produced industrially in 2017. Bacterial growth dynamics and diversity were monitored throughout the refrigerated storage period to estimate the impact of packaging atmosphere and the use of potassium lactate as chemical preservative. The data include several types of analysis aiming at providing a comprehensive microbial ecology of spoilage during storage and how the process parameters do influence this phenomenon. The analysis includes: the gas content in packaging, pH, chromametric measurements, plate counts (total mesophilic aerobic flora and lactic acid bacteria), sensorial properties of the products, meta-metabolomic quantification of volatile organic compounds and bacterial community metagenetic analysis. Bacterial diversity was monitored using two types of amplicon sequencing (16S rRNA and GyrB encoding genes) at different time points for the different conditions (576 samples for gyrB and 436 samples for 16S rDNA). Sequencing data were generated by using Illumina MiSeq. The sequencing data have been deposited in the bioproject PRJNA522361

本数据集详细记载了2017年工业化生产的576份生鲜猪肉或禽肉香肠样本表面细菌群落的多样性特征。
研究全程监测了冷藏储存期间的细菌生长动态与群落多样性，以此评估包装气体环境及乳酸钾作为化学防腐剂的应用效果。
本数据集涵盖多维度分析手段，旨在全面解析储存过程中的腐败微生物生态学规律，以及工艺参数对该腐败过程的影响机制。
具体分析内容包括：包装内气体组分、pH值、色度检测、菌落计数（总嗜氧中温菌群与乳酸菌计数）、产品感官特性评价、挥发性有机化合物的宏代谢组定量分析，以及细菌群落宏遗传学分析。
针对不同实验条件，研究在多个时间点采用两种扩增子测序技术（16S rRNA基因与GyrB编码基因）监测细菌多样性：其中GyrB测序样本共计576份，16S rDNA测序样本共计436份。
测序数据通过Illumina MiSeq平台生成，已提交至NCBI生物项目数据库PRJNA522361。