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Abstract ▼ AI-Helper

For the purpose of enzymatic production of galactooligosaccharides from soybean arabinogalactan (SAG) hydrolysis, the $\beta$-1, 4-D-arabinogalactanase($\beta$-1, 4-galactanase) from Bacillus sp. HJ-12 was used. The soybean galactooligosaccharides(SOS) were optimally produced i...

For the purpose of enzymatic production of galactooligosaccharides from soybean arabinogalactan (SAG) hydrolysis, the $\beta$-1, 4-D-arabinogalactanase($\beta$-1, 4-galactanase) from Bacillus sp. HJ-12 was used. The soybean galactooligosaccharides(SOS) were optimally produced in SAG 1%(w/v), pH 8.0, 5$0^{\circ}C$, $\beta$-1, 4-galactanase 20unit/g SAG and 24-40 hour reaction conditions. The produced galactooligosaccharides had visocity of 11,000 cp at 75%(w/v), $25^{\circ}C$. The viscosity of galactooligosaccharides was 80 fold increasing value than that of sucrose solution. Temperature dependence of viscosity of SOS was 4.6 fold higher value than surose solution below than 5$0^{\circ}C$. Less than 50 Brix, the viscosity of SOS was similar with sucrose solution(20-40 cp), but increasing of concentration, the difference of viscosity between SOS and sucrose solution was increased. And, SOS was very stable at pH and temperature.

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