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January 2001 - present
Publications
Publications (11)
Introduction
On 1 January 2020, Vietnam introduced a new law with harsher fines and penalties for driving under the influence of alcohol. Reports of empty beer restaurants following this implementation suggested the new law has the potential to reduce population‐level alcohol consumption. This pilot study aims to quantify short‐term changes in alco...
Polar lipids were recently found to have the surfactant property that could interfere with the bacterial adherence process during biofilm formation, a promising effect against the bacterial contamination on food processing surfaces. This study aimed to investigate the effect of surface conditioning of polar lipids such as phosphatidylcholine and sp...
Introduction. The bacterium strain Paracoccus carotinifaciens VTP20181 isolated in Vietnam produces canthaxanthin, a carotenoid widely used in the food and pharmaceutical industries. The aim of this work was to determine optimal parameters for canthaxanthin extraction from fermented biomass of P. carotinifaciens VTP20181.
Study objects and methods....
Sinh tổng hợp canthaxanthin từ vi sinh vật là hướng tiếp cận thực tiễn được nhiều nhà nghiên cứu, doanh nghiệp chú ý nhằm đáp ứng nhu cầu của thị trường đối với hoạt chất sinh học gốc carotenoid có nhiều tiềm năng này. Mục tiêu của nghiên cứu này là khảo sát ảnh hưởng của một số thành phần môi trường đến khả năng sinh tổng hợp canthaxanthin của P.c...
Trehalose synthase (TreS, EC 2.4.1.245) is a potential catalyst for synthesis of trehalose, an important natural disaccharide. In this study, the treS gene of Pseudomonas putida (VTCC 12263) was cloned into pHT01 plasmid at BamHI-XbaI position, expressed in Bacillus subtilis (B. subtilis) 1012, and characterized. The recombinant TreS had molecular...
Maltooligosyltrehalose trehalohydrolase (MTHase) is an industrial enzyme for the production of trehalose. A DNA fragment of 1680 bp encoding for MTHase was cloned from Sulfobolus solfataricus DSM 1616 then fused with promoter acoA-amyE already amplified from pMSE3 vector by PCR to generate an expression cassette acoMTH. Afterward the cassette was i...
Maltooligosyl trehalose synthase (MTSase, EC 5.4.99.15) catalyzes the synthesis of maltooligosyl trehalose by converting the of α (1 → 4) glucosidic linkages on the reducing ends of maltooligosaccharides to α (1 →1) glucosidic linkages. Maltooligosyl trehalose trehalohydrolase (MTHase, EC 3.2.1.141) catalyzes the release of trehalose by cleaving th...
In the dairy industry, dairy by-products such as skim milk, buttermilk and butter serum which possess different specific compositions, could contact with processing surfaces to form conditioning layers and subsequently alter bacterial attachment behavior of the surfaces. In order to simulate and elucidate this process, stainless steel coupons were...
Microbial biofilms present in dairy farms may contaminate milk during milk harvest and transfer diseases from the environment to cows. In order to reduce biofilm formation with respect to the role of pH, a study involving the control of milk pH during long-term biofilm formation of Bacillus licheniformis NBRC 12195 and Lactobacillus paracasei subsp...