نتایج جستجو برای: phenolphthalein

تعداد نتایج: 300  

Journal: :Cogent engineering 2021

The cyclodextrin glucanotransferase are extracellular enzymes that can hydrolysis starch as a substrate to cyclodextrin. Encapsulation and immobilization technique of microbial cells within the polymeric network have widespread applications in production enzyme. Bacterial were isolated from soil by serial dilution method. molecular identity was established using 16S rDNA sequence analysis, iden...

Journal: :Coatings 2021

To date, reinforcement concrete is the main construction material worldwide. As concentration of atmospheric CO2 steadily increasing, carbonation becomes a pressing concern. In this study, novel surface protective materials (SPMs) modified with hybrid nanoSiO2 (HNS), fly ash, and slag were developed to reduce emissions extend service life concrete. The depths measured by phenolphthalein reflect...

Journal: :Pharmacy 2023

Health concerns associated with the consumption of food supplements rise in parallel popularity and market availability these products. In pursuit data related to unauthorized presence pharmaceuticals supplements, Rapid Alert System for Food Feed (RASFF) database was searched 2011–2022 period. The most “popular” adulteration were phosphodiesterase-5 inhibitors (235 records); anorexics laxatives...

Journal: :Jurnal IPA dan pembelajaran IPA 2021

Experiments are an important part of the chemistry curriculum. An indicator in form a synthesis is commonly used acid-base materials experiments. The usage synthetic indicators can result waste that both environmentally harmful and costly. butterfly pea flower one plants contains anthocyanins, which have potential to be as alternative indication natural acids bases. study aims determine acid ba...

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