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Free oligosaccharides are abundant components of mammalian milk and have primary roles as prebiotic compounds, in immune defense, and in brain development. A mass spectrometry-based technique is applied to profile milk oligosaccharides from apes (chimpanzee, gorilla, and siamang), new world monkeys (golden lion tamarin and common marmoset), and an old world monkey (rhesus). The purpose of this study is to evaluate the patterns of primate milk oligosaccharide composition from a phylogenetic perspective to assess the extent to which the compositions of HMOs derives from ancestral primate patterns as opposed to more recent evolutionary events. Milk oligosaccharides were quantitated by nanoflow liquid chromatography on chip-based devices. The relative abundances of fucosylated and sialylated milk oligosaccharides in primates were also determined. For a systematic and comprehensive study of evolutionary patterns of milk oligosaccharides, cluster analysis of primate milk was performed using the chromatographic profile. In general, the oligosaccharides in primate milk, including humans, are more complex and exhibit greater diversity compared to the ones in nonprimate milk. A detailed comparison of the oligosaccharides across evolution revealed nonsequential developmental pattern, that is, that primate milk oligosaccharides do not necessarily cluster according to the primate phylogeny. This report represents the first comprehensive and quantitative effort to profile and elucidate the structures of free milk oligosaccharides so that they can be related to glycan function in different primates.
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http://dx.doi.org/10.1021/pr1009367 | DOI Listing |
Food Chem
December 2024
Food Technology Major, Graduate School of International Agricultural Technology, Seoul National University, Pyeongchang 25354, Republic of Korea; Institute of Food Industrialization, Institutes of Green Bio Science and Technology, Seoul National University, Pyeongchang 25354, Republic of Korea; Center for Food and Bioconvergence, Seoul National University, Seoul 08826, Republic of Korea. Electronic address:
The moisture sorption characteristics of crystalline and amorphous forms of 2'-fucosyllactose (2'-FL) were investigated and compared with those of two forms of lactose. The moisture sorption isotherms showed that, relative to crystalline α-lactose monohydrate (α-LM), crystalline 2'-FL was more susceptible to moisture sorption. Crystalline 2'-FL exhibited a lower deliquescence point (89.
View Article and Find Full Text PDFJ Agric Food Chem
December 2024
College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
Difucosyllactose (DFL), an important kind of fucosylated human milk oligosaccharides (HMOs), has garnered considerable attention due to its excellent physiological activities in infants. Previously, we achieved biosynthesis of DFL; however, substantial residual intermediates of fucosyllactoses (FL) were detected. In this study, DFL biosynthesis was optimized, and residual FL were reduced by regulating metabolic pathways.
View Article and Find Full Text PDFArch Argent Pediatr
December 2024
Instituto de Lactología Industrial (INLAIN, CONICET-UNL), Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santa Fe, Argentina.
Human milk oligosaccharides (HMO) are the specific and selective growth substrate for bifidobacteria, preventing pathogen adhesion, modulating the immune system, and impacting neurodevelopment. Human milk is the best food for the neonate; infant formulas enriched with HMOs are indicated when human milk is not possible or sufficient. HMOs developed and added to available infant formulas are 2'-FL (2'-fucosyl lactose), 3-FL (3-fucosyl lactose), 3'-SL (3'-sialyl lactose), 6'-SL (6'-sialyl lactose), LNT (lacto-N-tetraose), and 3'-GL (3'-galactosyl lactose), the latter being produced in situ by microbial fermentation.
View Article and Find Full Text PDFGut Microbes
December 2025
Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA.
Diet is one of the main factors shaping the human microbiome, yet our understanding of how specific dietary components influence microbial consortia assembly and subsequent stability in response to press disturbances - such as increasing resource availability (feeding rate) - is still incomplete. This study explores the reproducible re-assembly, metabolic interplay, and compositional stability within microbial consortia derived from pooled stool samples of three healthy infants. Using a single-step packed-bed reactor (PBR) system, we assessed the reassembly and metabolic output of consortia exposed to lactose, glucose, galacto-oligosaccharides (GOS), and humanized GOS (hGOS).
View Article and Find Full Text PDFMetab Eng
December 2024
Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi, 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi, 214122, China. Electronic address:
2'-Fucosyllactose (2'-FL) is the most abundant human milk oligosaccharide and plays significant roles in gut microbiome balance, neural development, and immunoregulation. However, current fermentation schemes using multiple carbon sources increase production cost and metabolism burden. This study reported the development of an engineered Bacillus subtilis strain that produces 2'-FL using glucose as the sole carbon source.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!