Lipid polymers

This Volume presents protocols for systems and synthetic biology applications in the field of hydrocarbon and lipid microbiology. It complements another Volume that describes generic protocols for wet experimental and computer-based systems and synthetic biology studies.

145p vimeyers 29-05-2024 3 2   Download

Ebook "QCM-D studies on polymer behavior at interfaces" reviews the applications of quartz crystal microbalance with dissipation (QCM-D) in polymer research, including the conformational change of grafted polymer chains, the grafting kinetics of polymer chains, the growth mechanism of polyelectrolyte multilayers, and the interactions between polymers and phospholipid membranes.

86p coduathanh1122 27-03-2024 4 1   Download

Part 2 book "Safety-scale laboratory experiments for chemistry for today general, organic, and biochemistry" includes content: Reactions of aldehydes and ketones; reactions of carboxylic acids, amines, and amides; the synthesis of aspirin and other esters; identifying functional groups in unknowns; synthetic polymers; dyes, inks, and food colorings; a study of carbohydrates; preparation of soap by lipid saponification; isolation of natural products - trimyristin and cholesterol; amino acids and proteins;... and other contents.

262p muasambanhan03 02-01-2024 3 2   Download

Cuốn sách "Polyme ưa nước - Hóa học và ứng dụng" cung cấp những thông tin ngắn gọn nhưng có căn cứ chính xác về các loại polyme ưa nước tự nhiên và tổng hợp được biến tính cũng như các loại gôm có trên thị trường Lipids là các hydrocarbon có phân nhóm hóa học đa dạng. sách được chia thành 2 phần, mời các bạn cùng tham khảo phần 1 cuốn sách.

151p besfriend03 08-05-2023 10 5   Download

Successful treatment of skin infections requires eradication of biofilms found in up to 90 % of all chronic wounds, causing delayed healing and increased morbidity. We hypothesized that chitosan hydrogel boosts the activity of liposomally-associated membrane active antimicrobials (MAA) and could potentially improve bacterial and biofilm eradication.

10p viginny 30-12-2022 3 2   Download

The degree of DNA depolymerization, qualitative and quantitative composition of protein and lipid components of the obtained preparations determined the possibility of their use as medical drugs. The method of obtaining the target product with the use of salt extraction and ethanol precipitation was supplemented by proteolysis in order to remove residual protein to a value of no more than 5% of dry weight.

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The structures of the products were established by the methods of TLC, IR and UV-Vis spectroscopy. The purification of trehalose lipids from crude extract was carried out using silica gel column chromatography, one of the trehalose lipids fractions was identified as a trehalose dimycolate. The presence of (NН) group was detected in the exopolysaccharide. For the first time, a biodegradable polymer was isolated from bacteria cells of the strain R. erythropolis Au-1, іt was identified as the polyhydroxyalkanoate.

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This paper reviewed for starch as natural polymer, chemical form of starch for conversion in plastic film, effect of amylose/amylopectin content, effect of lipid content and effect of relative humidity on properties of starch film. For strengthening of plastic film from starch, a blend with synthetic polymer is also discussed with limited synthetic polymers like polyethylene, polyester, polypropylene, and polylactic acid considering the length of review article.

32p trinhthamhodang11 27-04-2021 14 1   Download

This chapter presents the following content: Macromolecules are polymers, built from monomers; Carbohydrates serve as fuel and building material; Lipids are a diverse group of hydrophobic molecules.

93p tradaviahe14 27-01-2021 14 1   Download

The anther cuticle, which is primarily composed of lipid polymers, is crucial for pollen development and plays important roles in sexual reproduction in higher plants. However, the mechanism underlying the biosynthesis of lipid polymers in maize (Zea mays. L.) remains unclear.

14p vishikamaru2711 29-04-2020 13 1   Download

Edible coatings or films have received considerable attention in recent years. Materials used in edible packaging (polysaccharide, lipid and protein-based and their composites) have apparent advantages over synthetic films. It could contribute to the reduction of environmental pollution. The main advantage of edible films over synthetics is that these may be safely eaten as a part of the food products and are environment-friendly at the same time as they increase the shelf life of fresh products.

11p cothumenhmong3 22-02-2020 22 3   Download

After completing this chapter, students will be able to: Know what are the most abundant elements in biological systems; know the structures of the commonly occurring organic compounds, functional groups and linkages found in biochemical compounds; know the monomer, polymer and supramolecular structural relationships of lipids, proteins, nucleic acids, and carbohydrates; know the major differences between a prokaryotic and eukaryotic cell; know the major functions associated with the different organelles and cellular compartments of eukaryotic cells.

38p tangtuy02 08-03-2016 38 3   Download

Đề tài nghiên cứu thực phẩm - thuốc từ chitosan để làm thực phẩm - thuốc bổ dưỡng cơ thể, phòng chống nguy cơ mắc một số bệnh như: hạ cholesterol và lipid máu, chống béo phì, chống suy giảm miễn dịch cơ thể...

92p la_lan23 13-04-2013 88 16   Download

Optimal conditions for the extraction of black fungus polysaccharides were 350 W, 5, 35 min and 90 ◦C, for ultrasonic power, ratio of water to sample, extraction time and extraction temperature, respectively. Gas chromatography (GC) analysis showed that black fungus polysaccharides contained glucose, xylose, mannose and ribose. Their molar percentages were 6.8%, 34.2%, 50.7% and 8.9%, respectively. FT-IR and NMR analysis showed typical chemical structure of black fungus polysaccharides.

8p the_eye_1991 18-09-2012 64 8   Download

Nguồn thức ăn cung cấp năng lượng cho lợn và gia cầm chủ yếu là ngũ cốc và phụ phẩm của ngũ cốc. Ngoài protein, lipid, chất dinh dưỡng cung cấp năng lượng chủ yếu của ngũ cốc và phụ phầm là carbohydrate. Tổng carbohydrate thực vật bao gồm: polysaccharide không phải tinh bột (non starch polysacharide: NSP), lingin và tinh bột. Nhóm NSP bao gồm cellulose, non-cellulosic polymers và pectic polysaccharides. Cellulose là một polymer cấu tạo bởi các đơn vị đường glucose, nối với nhau bởi dây nối β- 1,4 glucoside.

7p muakhuya 03-09-2012 119 25   Download

Lipids là các hydrocarbon có phân nhóm hóa học đa dạng. Lipid có tính chất không tan trong nước do sự hiện diện các liên kết hoá trị không phân cực. Như đã bàn trong chương 2, các phân tử hydrocarbon không phân cực thì không ưa nước, ưu tiên kết hợp lẫn nhau, tránh xa nước, phân tử phân cực.Khi những phân tử không phân cựcnày dứng gần nhau , nhưng yếu thì lực liên kết Van der Wa als giúp chúng liên kết lại.Sự liên kết của các đại phân tử này không phải là polymer theo hoá...

14p heoxinhkute6 25-11-2010 530 27   Download