A comparison of milk protein, fat, lactose, total solids and amino acid profiles of three different buffalo breeds in Guangxi, China

Abstract

This study compared the milk protein, fat, lactose, total solids and amino acids (AA) profiles of Murrah buffalo, Nili-Ravi buffalo and crossbreed buffalo. Buffalo milk samples of Murrah (n ¼ 25), Nili-Ravi (n ¼ 20) and Triple-crossbred (n ¼ 23) were collected and milk protein, fat, lactose, total solids and 17 AA profiles were determined. Milk protein and total solids contents of Murrah buffalo were higher than those of Nili-Ravi buffalo (p < .05). The average milk protein, fat, lactose and total solids contents of all buffalo samples were 4.76, 7.31, 5.19 and 18.40 g/100 g of milk, respectively. The AA composition of all three kinds of milk samples was rich in glutamic acid (0.89-0.96 g/100 g of milk) and poor in cysteine (0.01-0.02 g/100 g of milk). Leucine, lysine, valine and isoleucine were the most prevalent essential amino acids; while glutamic acid, proline, aspartic acid and serine were the most prevalent non-essential amino acids in the three kinds of milk samples. Significant differences (p < .05) were observed for concentrations of Lys, Ile, Leu, Phe, Cys and His, while the other 11 amino acids had no significant differences (p > .05). Conclusively, the milk of Murrah buffalo, Nili-Ravi buffalo and crossbreed buffalo was all rich in glutamic acid while poor in cysteine contents. After crossbreeding, the milk production of Triplecrossbred buffalo was higher than the local Chinese buffalo and its milk composition was in between those of Murrah and Nili-Ravi.

Investigation of the Lactic Acid Bacteria in Kazak Cheese and Their Contributions to Cheese Fermentation

“…During the cheese fermentation process, proteases from microorganisms degrade the proteins in milk and produce large amounts of peptides that can be further degraded into small peptides and FAAs (Niro et al, 2017;Moser et al, 2018). The concentration of different FAAs in cheese depends on the milk, starter, rennet, ripening conditions, and time of maturation (Tavaria et al, 2003;Tofalo et al, 2015;McCarthy et al, 2017;Zhou et al, 2018). Furthermore, FAAs are an important component in cheese.…”

LC-MS/MS Based Metabolomics Reveal Candidate Biomarkers and Metabolic Changes in Different Buffalo Species

“…Studies have found that the values for the composition (milk protein, milk fat, and total solids) of diverse buffalo milk are significantly different [ 2 ]. Meanwhile, milk protein and fat content in triple-crossbred buffalo is higher than Nili-Ravi buffalo, but lower than Murrah buffalo [ 4 ]. Milk traits among different breeds are different, and genetics is one of the main factors affecting milk quality [ 5 ].…”

Changes in milk yield and composition of colostrum and regular milk from four buffalo breeds in China during lactation

“…Zhou et al . reported the fat, protein, lactose and total solids contents in the milk of Murrah buffalo, Nili‐Ravi buffalo and triple‐crossbred buffalo (Murrah buffalo, Nili‐Ravi buffalo and local swamp buffalo) . However, little information has been reported on the change of milk yield and milk components from the representative domestic buffalo breeds in China throughout lactation.…”

“…8 Zhou et al reported the fat, protein, lactose and total solids contents in the milk of Murrah buffalo, Nili-Ravi buffalo and triple-crossbred buffalo (Murrah buffalo, Nili-Ravi buffalo and local swamp buffalo). 9 However, little information has been reported on the change of milk yield and milk components from the representative domestic buffalo breeds in China throughout lactation. Therefore, the objective of the present study was to determine and compare the physicochemical parameters, such as total solids, protein, fat, lactose, and ash contents, and pH value, of buffalo milk from four representative breeds in China (Murrah, Nili-Ravi, F 1 and F H ), and to determine how these parameters varied throughout lactation.…”