Results 41 to 50 of about 19,728 (332)

Continuous Packed Bed Reactor with Immobilized β-Galactosidase for Production of Galactooligosaccharides (GOS) [PDF]

, 2017
The β-galactosidase from Bacillus circulans was covalently attached to aldehyde-activated (glyoxal) agarose beads and assayed for the continuous production of galactooligosaccharides (GOS) in a packed-bed reactor (PBR).
Ballesteros Olmo, Antonio, Fernández Arrojo, Lucía, Plou Gasca, Francisco José, Rodríguez-Colinas, Bárbara, Santos-Moriano, Paloma   +4 more
core   +1 more source

Biotechnology of Lactulose Production: Progress, Challenges, and Prospects

Техника и технология пищевых производств, 2023
Lactulose is a prebiotic that has found a wide application in medicine and food industry. Commercial lactulose is usually synthesized by isomerization in alkaline media at high temperatures.
Svetlana A. Ryabtseva, Andrey G. Khramtsov, Maria A. Shpak, Alexey D. Lodygin, Georgy S. Anisimov, Serafima N. Sazanova, Yulia A. Tabakova   +6 more
doaj   +1 more source

Biotechnological applications of functional metagenomics in the food and pharmaceutical industries [PDF]

, 2015
peer-reviewedMicroorganisms are found throughout nature, thriving in a vast range of environmental conditions. The majority of them are unculturable or difficult to culture by traditional methods.
Alvarez-Ordonez, Avelino, Cotter, Paul D., Coughlan, Laura M., Hill, Colin   +3 more
core   +1 more source

Lactulose Biosynthesis with Enzymes of Lactose-Fermenting Micromycetes and Bacteria

Техника и технология пищевых производств
Lactulose is a well-studied prebiotic popular in medicine and the food industry. β-Galactosidases offer an alternative to traditional chemical methods of lactulose production. The article describes lactulose biosynthesis with crude enzyme preparations of
Svetlana A. Ryabtseva, Maria A. Shpack, Aleksei D. Lodygin, Alexander V. Serov, Serafima N. Sazanova, Marina V. Skorokhodova, Vera Yu. Romakhova   +6 more
doaj   +1 more source

Present status on removal of raffinose family oligosaccharides - a Review

Czech Journal of Food Sciences, 2019
Raffinose family oligosaccharides (RFOs) are α-galactosyl derivatives of sucrose or glucose. They are found in a large variety of seeds from many different families such as beans, vegetables and whole grains.
Jian Zhang, Guangsen Song, Yunjun Mei, Rui Li, Haiyan Zhang, Ye Liu   +5 more
doaj   +1 more source

Cloning, Expression, Purification, and Characterization of β-Galactosidase from Bifidobacterium longum and Bifidobacterium pseudocatenulatum

Molecules, 2022
Expression and purification of β-galactosidases derived from Bifidobacterium provide a new resource for efficient lactose hydrolysis and lactose intolerance alleviation. Here, we cloned and expressed two β-galactosidases derived from Bifidobacterium. The
Mingzhu Du, Shuanghong Yang, Tong Jiang, Tingting Liang, Ying Li, Shuzhen Cai, Qingping Wu, Jumei Zhang, Wei Chen, Xinqiang Xie   +9 more
doaj   +1 more source

Overview of molecular signatures of senescence and associated resources: pros and cons

FEBS Open Bio, EarlyView.
Cells can enter a stress response state termed cellular senescence that is involved in various diseases and aging. Detecting these cells is challenging due to the lack of universal biomarkers. This review presents the current state of senescence identification, from biomarkers to molecular signatures, compares tools and approaches, and highlights ...
Orestis A. Ntintas, Sylvia Vagena, Pavlos Pantelis, Giorgos Theocharous, Russel Petty, Konstantinos Evangelou, Vassilis G. Gorgoulis   +6 more
wiley   +1 more source

Senescence-associated beta-galactosidase is lysosomal beta-galactosidase

Aging Cell, 2006
Replicative senescence limits the proliferation of somatic cells passaged in culture and may reflect cellular aging in vivo. The most widely used biomarker for senescent and aging cells is senescence-associated beta-galactosidase (SA-beta-gal), which is defined as beta-galactosidase activity detectable at pH 6.0 in senescent cells, but the origin of SA-
LEE BY, HAN JA, IM JS, MORRONE, AMELIA, JOHUNG K, GOODWIN EC, KLEIJER WJ, DIMAIO D, HWANG ES   +8 more
openaire   +4 more sources

Biocatalytic approaches using lactulose: end product compared with substrate [PDF]

, 2016
Lactulose is a lactose-based carbohydrate with well-known prebiotic effect and recognized medical applications. Currently, the commercially available lactulose is chemically synthesized. Nevertheless, the process leads to low yields and high levels of by-
Macedo, Eugénia A., Rodrigues, L. R., Silvério, Sara C., Teixeira, J. A.   +3 more
core   +2 more sources

Construction, Isolation and Implications of Repressor‐galactosidase ·ß‐galactosidase Hybrid Molecules [PDF]

European Journal of Biochemistry, 1977
Escherichia coli heterogenotes, which produce hybrid molecules between the chimaeric protein repressor‐galactosidase and the enzyme β‐galactosidase, were constructed. Repressor‐galactosidase. in which fully active lac repressor is covalently linked to active β‐galactosidase, is an aggregate with a core structure of four β‐galactosidase parts and two ...
J, Kania, B, Müller-Hill
openaire   +2 more sources