Results 11 to 20 of about 133,066 (344)

Fine structural analysis of the fungal polysaccharide pullulan elaborated by aureobasidium pullulans, CH-1 strain [PDF]

open access: yesJournal of the Serbian Chemical Society, 2001
The structure of pullulan, the extracellular -D-glucan elaborated by the yeast-like fungus Aureobasidium pullulans, may be described as a linear -D-glucan consisting of maltotriosyl repeat units connected terminally by (1 6)- -D-glucosidic bonds.
Jakovljević Dragica   +3 more
doaj   +3 more sources

Long-term influence of soil environment conditions on the structure and selected properties of PLA packaging [PDF]

open access: yesArchives of Environmental Protection, 2023
Studies on packaging made of polylactide (PLA) subjected to long-term influence of soil environment conditions have been presented in this paper. The scientific objective of this study was to determine changes in selected properties of the PLA packaging ...
Rafał Malinowski   +5 more
doaj   +1 more source

Probing Aggregation Tendencies in Asphaltenes by Gel Permeation Chromatography. Part 2: Online Detection by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry and Inductively Coupled Plasma Mass Spectrometry

open access: yesEnergy & Fuels, 2020
This work is the second installment of a study that probes the aggregation behavior of asphaltenes by gel permeation chromatography (GPC).
Jonathan C Putman   +12 more
semanticscholar   +1 more source

Determination of Dioxins and Dioxin-like Polychlorinated Biphenyls in Pork by Gas Chromatography-Tandem Mass Spectrometry [PDF]

open access: yesShipin Kexue, 2023
A gas chromatography-tandem mass spectrometry (GC-MS/MS) with stable isotope dilution (SID) method was established for the determination of dioxins (PCDD/Fs) and dioxin like polychlorinated biphenyls (DL-PCBs) in pork. The sample was extracted by Soxhlet
LU Jing, JIAO Yanna, CHENG Jing, SHEN Tiantian, ZHU Shaohua, FU Shanliang
doaj   +1 more source

"Synthesis and structural regulation of low vinyl polybutadiene-b-polyvinylpyridine block copolymers "

open access: yesHecheng xiangjiao gongye, 2023
A low vinyl polybutadiene (PB)-polyvinylpyridine (PVP) diblock copolymers (lvPB-b-PVP) with the same segment length of PB but different segment length of PVP and controllable molecular weight and its distribution was designed and synthesized using ...
WANG Bo, YANG Jia-xin, MA Hong-wei, LI Yang, HAN Li
doaj   +1 more source

Formulation of Gel Containing Phenylbutenoid Extract for Pain Relief

open access: yesJournal of Health Science and Medical Research (JHSMR), 2023
Objective: A phenylbutenoid extract (PE) was obtained from Zingiber cassumunar rhizomes. Phenylbutenoids; namely DMPBD, compound D, and compound D acetate, have been identified as major anti-inflammatory and analgesic constituents.
Thidaporn Gundom   +2 more
doaj   +1 more source

Preparation, chemical structure, and immunostimulatory activity of a water-soluble heteropolysaccharide from Suillus granulatus fruiting bodies

open access: yesFood Chemistry: X, 2022
A water-soluble heteropolysaccharide (SGP2-1) was purified from Suillus granulatus fruiting bodies by anion-exchange chromatography and gel permeation chromatography.
Xiong Gao   +10 more
doaj  

Analysis of chitosan molecular weight profile by electrophoresis in a porosity step gradient polyacrylamide gel [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2022
Chitosan is biocompatible and biodegradable natural biopolymer widely applied in various fields of biology, medicine, and pharmacy, however, its effects significantly depend on the degree of polymerization (DP) and the degree of deacetylation (DDA) of ...
N. O. Manko   +3 more
doaj   +1 more source

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