Abstract:Modulating α-amylase enzyme activity with bioactive peptides of protein hydrolysate is one of a viable strategy in the management of diabetes through the control of postprandial glucose level. In this study, four proteolytic enzymes (pepsin, neutrase, alcalase and trypsin) were used to investigate the in vitro α-amylase inhibition of dried laver seaweed (Porphyra species) protein hydrolysates. Pepsin hydrolysate showed effective inhibition rate at an IC50 value of 1.86 mg/mL protein as compared to other enzyme… Show more
“…Gelatin merupakan suatu jenis protein jaringan ikat yang dihasilkan dari hasil ekstraksi kolagen tulang maupun kulit hewan. Pembuatan gelatin diproses menggunakan larutan basa atau asam kuat [1] das et al, 2017. Gelatin secara umum diekstrak dari sumber sapi maupun babi.…”
Gelatin is extracted from beef or pork. One of the potential sources of gelatin to be developed apart from land base mammalian is from poultry, namely duck bones. Gelatin extraction from duck bones can be carried out by the acid method. Several studies have reported that hydrolysis of gelatin using various types of enzymes will increase its bioactivity, such as antioxidants, antibacterials, and antihyperglycemic (alpha amylase inhibitors). The purpose of this study was to determine the characteristics of duck bone gelatin which hydrolyzed with trypsin enzyme as an alpha amylase inhibitor. This study used nonfactorial completely randomized design (CRD) with different hydrolysis time treatments. Research parameters such as total soluble protein, TCA soluble protein, hydrolysis degree, and alpha amylase inhibitory activity. The results showed that the different treatment times for hydrolysis had a significant effect (P <0.05) on the TCA soluble protein value and the degree of hydrolysis. However, there was no significant effect (P> 0.05) on the total dissolved protein. 180 minutes hydrolysis treatment time with a concentration series of 250; 500; 1000; 2000 ppm has inhibitory activity against alpha amylase, respectively, 39.42; 41.75; 44.58; 48.11%. It has IC50 value of 2.74 mg / mL. The inhibitory activity was still weaker than the positive control for acarbose.
“…Gelatin merupakan suatu jenis protein jaringan ikat yang dihasilkan dari hasil ekstraksi kolagen tulang maupun kulit hewan. Pembuatan gelatin diproses menggunakan larutan basa atau asam kuat [1] das et al, 2017. Gelatin secara umum diekstrak dari sumber sapi maupun babi.…”
Gelatin is extracted from beef or pork. One of the potential sources of gelatin to be developed apart from land base mammalian is from poultry, namely duck bones. Gelatin extraction from duck bones can be carried out by the acid method. Several studies have reported that hydrolysis of gelatin using various types of enzymes will increase its bioactivity, such as antioxidants, antibacterials, and antihyperglycemic (alpha amylase inhibitors). The purpose of this study was to determine the characteristics of duck bone gelatin which hydrolyzed with trypsin enzyme as an alpha amylase inhibitor. This study used nonfactorial completely randomized design (CRD) with different hydrolysis time treatments. Research parameters such as total soluble protein, TCA soluble protein, hydrolysis degree, and alpha amylase inhibitory activity. The results showed that the different treatment times for hydrolysis had a significant effect (P <0.05) on the TCA soluble protein value and the degree of hydrolysis. However, there was no significant effect (P> 0.05) on the total dissolved protein. 180 minutes hydrolysis treatment time with a concentration series of 250; 500; 1000; 2000 ppm has inhibitory activity against alpha amylase, respectively, 39.42; 41.75; 44.58; 48.11%. It has IC50 value of 2.74 mg / mL. The inhibitory activity was still weaker than the positive control for acarbose.
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