Results 121 to 130 of about 508,588 (281)

Validated RP‐HPLC–UV Method for the Quantitative Analysis and Stability Evaluation of Amoxicillin in Paediatric Gummy Tablets

open access: yesELECTROPHORESIS, EarlyView.
A validated RP‐HPLC–UV method was successfully applied for amoxicillin determination in gummy tablets. The method is useful for an accurate amoxicillin content determination in paediatric gummies and was applied to study the stability profile of the drug, evaluated over 6 months under storage conditions.
Samuele Bonafè   +7 more
wiley   +1 more source

ANALISA FLAVONOID DARI EKSTRAK ETANOL 96% KULIT BUAH OKRA MERAH (Abelmoschus esculentus L. Moench) SECARA KROMATOGRAFI LAPIS TIPIS DAN SPEKTROFOTOMETRI UV-VIS

open access: yesJIIS: Jurnal Ilmiah Ibnu Sina, 2016
Has done research on flavonoids Analysis of Ethanol Extract 96% Fruit Leather Red Okra In Thin Layer Chromatography and Spectrophotometer UV-Vis. The purpose of this study was to analyze the content of the fruit skin red okra (Abelmoschus esculentus L ...
Nia Lisnawati   +2 more
doaj  

Fermentation‐Induced Modulation of Polyphenolic Contents and Medicinal Activities in Annona squamosa Seeds

open access: yesFood Chemistry International, EarlyView.
The study compared the medicinal activities of polyphenols from fermented and unfermented seeds of Annona squamosa. The polyphenols were extracted and subjected to standard analysis. The major phenolic components of the fermented polyphenols and the unfermented polyphenols were found to be 4‐hydroxybenzoic and 4‐hydroxyphenylacetic acid, respectively ...
Shola Hezekiah Awojide   +10 more
wiley   +1 more source

STUDI PERBANDINGAN ANALISIS VITAMIN E MINYAK SAWIT MERAH TERSAPONIFIKASI ANTARA METODE SPEKTROFOTOMETRI UV-VIS DAN KCKT

open access: yesKovalen: Jurnal Riset Kimia, 2017
A research about a comparative study of spectrophotometry UV-Vis and HPLC method for the analysis of vitamin E in saponified red palm oil has been done.
Arlina Mayharty Andulaai   +3 more
doaj  

Light‐Driven Butyrate Production by a Probiotic Clostridium tyrobutyricum Enabled by a Cell‐Semiconductor Hybrid Interface

open access: yesFood Chemistry International, EarlyView.
This schematic illustrates a light‐driven biohybrid system where CdS nanoparticles, mineralized on the probiotic Clostridium tyrobutyricum, inject photoelectrons to elevate intracellular NADH. This boosts the flux through key NADH‐dependent enzymes (GapA, Hbd, and Bcd), reprogramming metabolism to enhance butyrate yield by 33.2% and selectivity to 95.7%
Qianru Zhao   +3 more
wiley   +1 more source

UV/VIS Spectrophotometry and Its Possibilities of Use in Teacher Education

open access: yes, 2016
This master's thesis discusses the use of UV/VIS spectrophotometry in chemistry teacher education. Optical methods principles are described in theoretical part of the thesis, and. the main part is dedicated to UV-VIS spectrophotometry.
Hejsková, Veronika
core  

Optimising the Eco‐Friendly Extraction of Carotenoids From Gac Fruit: A Sustainable Solution for Natural Red Food Colourants

open access: yesFood Chemistry International, EarlyView.
Gac fruit's high carotenoid content, especially in the aril, makes it an excellent natural red pigment source for food applications, offering a safer alternative to synthetic dyes. Ethanol extraction achieved the highest overall pigment recovery (89.53%), whereas ethyl lactate extraction yielded the highest levels of total carotenoids, β‐carotene ...
N. Netravati   +4 more
wiley   +1 more source

Composite materials based on dual network cross‐linking for flexible sensors

open access: yesFlexMat, EarlyView.
Utilizing hydrogen bond lithium bond dual network structure to effectively enhance the rapid self‐healing properties of flexible ionic materials. Abstract The further development of flexible ionic materials is limited by the evaporation or leakage of their internal liquid state. This article presents a composite flexible ionic material with no internal
Xiaoming Wang   +6 more
wiley   +1 more source

PENETAPAN KADAR FLAVONOID EKSTRAK TERPURIFIKASI UMBI BAWANG DAYAK (Eleutherine palmifolia (L). Merr) SECARA SPEKTROFOTOMETRI

open access: yesJIIS: Jurnal Ilmiah Ibnu Sina, 2019
Eleutherine palmifolia (L) Merr. is one of the plant that has function as medicine. One of the compound which much contained in ethanol extract of dayak union is flavonoid, so that could separate with purification.
Siti Jubaidah   +3 more
doaj  

Activated carbons made from cocoa (Theobroma cacao) and coconut (Cocos nucifera) shells can be used as adsorbents to improve the quality of frying oils

open access: yesFood Biomacromolecules, EarlyView.
Carbonised cocoa shells and carbonised coconut shells have a high level of porosity and a large adsorption surface area. Activated carbons made from cocoa and from the mixture cocoa–coconut shells at 15% demonstrated their ability to reduce primary and secondary oxidation products in frying oils and improves the organoleptic properties of fried foods ...
Gires Boungo Teboukeu   +6 more
wiley   +1 more source

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