Organic acid

In this study, we investigated some conditions affecting the extraction of total carotenoids from R. mucilaginosa using environmentally friendly chemicals: cell disruption conditions with organic acids combined with ultrasound-assistant method, using ethanol and petroleum ether solvents to replace acetone in the process of extracting total carotenoids to obtain a benign product, easy to apply in food.

8p viling 11-10-2024 2 1   Download

The objective of this study was to determine the impact of the extraction conditions on the extraction yield of bioactive compounds from grape pomace using choline chloride and organic acid-based deep eutectic solvents (DES).

9p viling 11-10-2024 0 0   Download

A metal-organic framework Cu2(NDC)2(DABCO) was synthesized from copper nitrate trihydrate, 2,6-Napthalenedicarboxylic acid (H2NDC), and 1,4-diazabicyclo[2.2.2]octane (DABCO) by solvothermal method. Its physicochemical properties were confirmed by several techniques such as X-ray powder diffraction (PXRD), Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), and transmission electron microscopy (TEM).

7p vikwong 29-09-2024 2 1   Download

In this article, the results of the research on organic pollutant treatment in the wastewater of printing processes on fabric by H2O2 under the catalytic role of the complex between ion Ni2+ and Citric acid (H4L) were presented.

5p vikwong 29-09-2024 3 1   Download

The synthesized complexes were tested for the ability to stimulate growth and improve productivity for Thai cucumber. The study results showed that the complexes reduced the growth time of the plants and increased the yield by > 20%. Yields of cucumbers sprayed with rare earth tartrate complexes reached ~62 tons/ha and increased by 20% compared with control samples.

6p vikwong 29-09-2024 2 1   Download

Novel photocatalysts, based on modified mesostructured UiO-66-Zr composites with defects sites in framewwork arrays were prepared by solvothermal synthesis method using CTABr as ionic surfactant template, acetic acid and benzoic acid as modulators.

7p vikwong 29-09-2024 2 1   Download

In this study, the photocatalytic degradation of rhodamine b (RhB) is investigated over metal-organic framework materials based on bismuth and trimesic acid (Bi-BTC) with different metal-to-ligand molar ratios. All obtained products are characterized by using powder X-ray diffraction, scanning electron microscopy, and UV–vis diffuse reflectance spectroscopy.

6p vikwong 29-09-2024 1 1   Download

The present study focused on isolation, identification, and evaluation of glass biodeterioration properties such as organic acid and exopolysaccharide production of fungal strain Chaetomium globosum TTHF1-3 isolated from lens of optical instrument collected at Thai Hoa, Nghe An province.

9p meyerowitz 25-12-2021 10 0   Download

This study aims to explore the potential of layered double hydroxides (LDHs) materials for the treatment of contaminated waters by organic pollutants, using a combined dual process, namely adsorptionphotocatalysis. A series of LDHs of ZnCr-X where (X ¼ Cl, SO4 and CO3) were synthesized and characterized by several techniques such as DRX, FTIR, BET, TEM, and UV-Visible spectrophotometry.

9p meyerowitz 25-12-2021 22 0   Download

Aim of the thesis: Synthesis of several derivatives and tubulysin analogues with the replacement of the amino acid methylpipecolic (Mep) at the N-terminal, replacing N,O-acetyl group by methyl group, and researching the role of tubuphenylalanine (Tup) group at the C-terminal.

26p extraenglish 24-05-2021 16 4   Download

Synthesis of several derivatives and tubulysin analogues with the replacement of the amino acid methylpipecolic (Mep) at the N-terminal, replacing N,O-acetyl group by methyl group, and researching the role of tubuphenylalanine (Tup) group at the C-terminal .

26p capheviahe27 23-02-2021 18 5   Download

The goals of the dissertation: Synthesizing deep eutectic solvents based on choline chloride with the compounds of 2-alkylbenzimidazole/ethylene glycol and determining their structures; using synthetic deep eutectic solvents to enrich and separate Omega-3,6,9 from waste fat in accordance with the facrories’ procedure of processing Vietnamese basa fish for export.

31p capheviahe27 23-02-2021 28 3   Download

The total organic acid content in papaya was relatively low and tends to decrease from young fruit stage to ripe fruit stage. Based on this study results, Taiwanese papaya fruit should be harvested after physiological maturity and before ripening completely (from 13 weeks of age to 15 weeks of age) to ensure the nutritional value of the fruit during storage.

7p tamynhan9 02-12-2020 15 2   Download

Protein is composed of amino acids which are, in turn, made up of mostly carbon, hydrogen, oxygen, nitrogen. A protein structure consists of thousands of coordinates of its atoms. Building structure index tables (often organized by suffix trees or arrays) of proteins is an important phase for quickly searching or classifying protein structures.

12p tamynhan8 04-11-2020 12 2   Download

A field experiment was conducted to evaluate the effect of organic manures and bio-fertilizers on the growth, yield and quality of chilli cv. Pusa Jwala. The experiments were conducted in Randomized Block Design with three replication. Among the various thirteen treatments, the combination of poultry manure + Azotobactor + Phosphotika stimulated better response. The growth, yield, ascorbic acid, TSS and NPK uptake by chilli plants were influenced by the application of organic manures and biofertilizers in combination.

8p cothumenhmong7 09-09-2020 18 3   Download

The soil-borne necrotrophic fungal pathogen Fusarium oxysporum f. sp. Ciceris (FOC)infects chickpeaand causes wilt in any stage of plant from seedling to podding. Owing to climate change and ever changing nature of the pathogen, no resistant host cultivar is sustaining long against this disease. Hence, root resident Aspergillus niger isolates as native mycoflora were evaluated as bioagent against the FOC because chemical control has long been discouraged due to its circulation in food chain. In this study, we established the biocontrol potential of organic acid producing A.

10p kequaidan7 01-09-2020 9 2   Download

The total synthesis of mycophenolic acid (MPA), a potent immunosuppressant, was modified. The obtained mycophenolic acid was suitable for further preparation of new prospective immunosuppressants with improved therapeutic properties.

8p tocectocec 25-05-2020 28 0   Download

A study of wine fermentation from mucilage of cocoa beans (theobroma cacao l.). Cocoa mucilage, a by-product of cocoa beans processing, constitutes 10% of total cocoa beans, with soluble solids up to 17.78 Bx, pH of 3.43 – 3.5, rich in sugar, minerals, organic acids and phenolic compounds.

11p lehasiphuong 22-05-2018 97 4   Download

Our study aimed to investigate the acidity status of mangrove soils in the ecological shrimp system to forecast their potential acidification risks. Results indicated that there were slight increases of soil acidity. High content (>5%) of soil organic carbon (SOC) in the depth of 0 – 80 cm is one of the main contributors to soil pH buffering capacity, and may help reduce sharply soil acidity changes.

7p bautroibinhyen16 09-02-2017 36 1   Download

Biochemistry is the study of the chemical composition and reactions of living matter. All chemicals in the body fall into one of two major classes: organic or inorganic compounds. Organic compounds contain carbon. All organic compounds are covalently bonded molecules, and many are large. All other chemicals in the body are considered inorganic compounds. These include water, salts, and many acids and bases. Organic and inorganic compounds are equally essential for life.

51p tangtuy07 02-04-2016 41 3   Download