Topic
Citric acid
About: Citric acid is a research topic. Over the lifetime, 17745 publications have been published within this topic receiving 277125 citations. The topic is also known as: citrate & H3cit.
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TL;DR: In this article, changes in soluble sugars, nonvolatile acids, pectin content, and the sugar composition of isolated pectins were determined during Monroe peach maturation from 80 days after flowering (DAF) until about 2 weeks after the beginning of fruit drop (130 DAF).
Abstract: Changes in soluble sugars, nonvolatile acids, pectin content, and the sugar composition of isolated pectin were determined during Monroe peach maturation from 80 days after flowering (DAF) until about 2 weeks after the beginning of fruit drop (130 DAF). Sucrose and sorbitol showed the largest changes of all carbohydrates measured. Quinic was the major acid in immature fruit but rapidly decreased during maturation. Malic became the major acid during final growth stages, and the increase in malic acid to citric acid ratios closely paralleled the time at which sucrose reached maximum levels. Total pectin levels increased linearly in immature fruit but leveled off about the time sucrose began its second sigmoidal increase. The carbohydrate composition of pectin also changed more during the linear increase in total pectin but remained fairly constant after total amounts leveled off. The time at which sucrose levels and malic acid to citric acid ratios reached maxima and quinic acid levels were lowest could be used as reliable indices of peach physiological maturity.
70 citations
TL;DR: In this article, a new stepwise degradation procedure for citric, α-ketoglutaric, and glutamic acids has been described, which permits the determination of the isotope concentration of each individual position of the carbon chain of these acids.
70 citations
TL;DR: The citric-acid-induced growth inhibition of both yeast species increased with increasing pH values, indicating that the antimicrobial mechanism of citric acid differs from that of classical weak-acid preservatives.
70 citations
TL;DR: Eight bacteria and fungi isolated from a typical Indian lateritic soil were capable of solubilizing Ca3(PO4)2 to a higher degree than AlPO4, and all the other organisms produced free aliphatic organic acid in detectable amounts.
70 citations
TL;DR: In this paper, Lanthanum and cerium were synergistically extracted and separated in a chloride medium using a mixture of 2-hexylphosphonic mono-2-ethylhexylhexyl ester (HEHEHP) and D2EHPA with lactic acid (LA) and citric acid (H 3 cit) as complexing agents.
70 citations