Results 121 to 130 of about 2,535,957 (290)

PRODUCTION OF OXALIC ACID BY ASPERGILLUS NIGER

open access: yes, 2017
Oxalic acid has been suggested to be essential in the metal leaching processes by Aspergillus niger. The ability of Aspergillus niger strain to produce a high amount of oxalic acid on glucose and sucrose media was investigated.
Suratman, Suratman, Handayani, Sri
core  

Nitrogen‐doped graphene quantum dots tune the mineral, acid, and sugar profile of raisins in a cultivar‐specific manner

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Carbon dots are emerging as low‐toxicity nano‐biostimulants, but their effects on the integrated mineral, organic‐acid, and sugar profiles of grape berries remain poorly characterized, especially in indigenous Vitis vinifera L. cultivars.
Zeki Kara   +5 more
wiley   +1 more source

The anodic oxidation of oxalic acid on Au [PDF]

open access: yes, 1970
The anodic oxidation of oxalic acid on Au has been studied at 80°C in aqueous media. The reaction rate was measured as a function of potential, oxalic acid concentration, pH, and temperature in H₂SO₄-K₂SO₄-KOH solutions of unit ionic strength. The oxalic
Mueller, Steven C.
core   +1 more source

Dissolution of kaolinite induced by citric, oxalic, and malic acids

open access: yes, 2005
Kaolinite is a dominant clay mineral in the soils in tropical and Subtropical regions, and its dissolution has an influence on a variety of soil properties.
Wang, XX   +5 more
core   +1 more source

Introducing a ramped pyrolysis/oxidation‐14CO2 analysis system operated with mobile molecular sieve traps

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract A novel instrument for the thermal degradation of sedimentary organic matter was set up at the Alfred Wegener Institute (AWI) in Bremerhaven, Germany, with the aim of enabling Ramped Pyrolysis/Oxidation‐14C analysis as direct CO2 gas measurement.
Laura Kattein   +4 more
wiley   +1 more source

Analysis of Corrosion and Wall Perforation in the Heat Exchanger Made of AISI 316L Stainless Steel

open access: yesMaterials and Corrosion, EarlyView.
Elevated passivation temperature is identified as the dominant factor triggering localized corrosion and subsequent perforation of AISI 316L heat exchanger tubes. Electrochemical and complementary characterization results show that the alloy retains high resistance to general, pitting, and intergranular corrosion, indicating that failure primarily ...
Bojana Radojković   +7 more
wiley   +1 more source

Advancing Therapies for Mycobacterial Diseases: From Small Molecules to Host‐Directed Strategies

open access: yesMedicinal Research Reviews, EarlyView.
ABSTRACT The global burden of multidrug‐resistant tuberculosis (MDR‐TB) and the rising incidence of nontuberculous mycobacterial (NTM) infections highlight the urgent need for innovative therapeutic strategies. Current treatments are prolonged, toxic, and increasingly compromised by resistance and limited diagnostic capacity.
Tânia Silva   +23 more
wiley   +1 more source

Evaluation of oxalic acid extraction and quantification methods in the different purslane (Portulaca oleracea L.) matrices and spinach (Spinacea oleracea)

open access: yesMethodsX
Purslane (Portulaca oleracea) and spinach (Spinacea oleracea) are species with elevated levels of oxalic acid, an antinutrient that interferes in the bioaccessibility of minerals such as calcium and iron.
Pâmela Gomes de Souza   +6 more
doaj   +1 more source

One-Step Mechanochemical Synthesis of Bulk Sized Electroactive MoS2/Oxalic Acid Dihydrate Composite for Catalytic Nitrophenol Reductions [PDF]

open access: yes
Nitrophenols are used in fabricating explosives and reported to be carcinogenic in nature, dictating a necessity for its efficient and eco-friendly reduction.
Himangshu, Prabal Goswami   +2 more
core   +1 more source

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