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논문 기본 정보

자료유형
학술저널
저자정보
Kyungae Jo (Korea University) Ki-Bae Hong (Korea University) Hyung Joo Suh (Korea University)
저널정보
한국식품영양과학회 Preventive Nutrition and Food Science Preventive Nutrition and Food Science Vol.25 No.1
발행연도
2020.3
수록면
71 - 77 (7page)
DOI
10.3746/pnf.2020.25.1.71

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In this study, we used various proteinases to investigate the effect of whey protein hydrolysates on proliferation and differentiation of MC3T3-E1 osteoblasts. To confirm hydrolysis of the whey protein hydrolysates, the yield and α-amino acid content were determined. Since osteogenic cell activity is an important factor in osteogenesis, we evaluated the proliferation of osteogenic cells by measuring 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide and alkaline phosphatase (ALP) activity. To analyze bone matrix formation, we identified calcium deposition by staining with Alizaline red-S. The free amino acid content was significantly higher in the whey protein hydrolysates prepared using Protamex, Flavourzyme, and Alcalase than in the control. When cells were treated with 500㎍/mL of whey protein hydrolysates prepared using Protamex and Alcalase, cell proliferation increased by 120% and 130%, respectively, compared with the control group. In addition, ALP activity was significantly higher following treatment with 500㎍/mL of whey protein hydrolysates prepared using Protamex and Alcalase (142.61% and 135.06%, respectively; P<0.05). Furthermore, when treated with 125㎍/mL of the same hydrolysates, the rate of calcium deposition increased significantly to 157.56% compared with the control group (P<0.05). Therefore, our results suggest that whey protein hydrolysates prepared using Protamex and Alcalase may have more beneficial effects on osteoblast proliferation and bone health than those prepared using other proteolytic enzymes.

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ABSTRACT
INTRODUCTION
MATERIALS AND METHODS
RESULTS AND DISCUSSION
REFERENCES

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