Preparation and Estimation of Crude Citrin Solutions (Vitamin P) From Lemons

Lorenz, A.; Arnold, Lea

doi:10.1111/j.1365-2621.1941.tb16278.x

Cited by 5 publications

(1 citation statement)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Total flavonoids are calculated as hesperidin or naringin. Flavonoids along with polyphenols can be tested qualitatively using (a) the ferric chloride test [79], (b) cyanidine reaction [80,81], (c) borocitrate reaction [82], and (d) the alkali test [80,83,84]. Quantitatively, it can be estimated by conventional methods, such as filter paper chromatography [85,86,87,88] and modern chromatographic and spectroscopic techniques, viz.…”

Section: Extraction Methodsmentioning

confidence: 99%

Modern Extraction and Purification Techniques for Obtaining High Purity Food-Grade Bioactive Compounds and Value-Added Co-Products from Citrus Wastes

Mahato

Sinha

Sharma

et al. 2019

Foods

212

133

View full text Add to dashboard Cite

Citrus contains a range of highly beneficial bioactive compounds, such as polyphenols, carotenoids, and vitamins that show antimicrobial and antioxidant properties and help in building the body’s immune system. On consumption or processing, approximately 50% of the fruit remains as inedible waste, which includes peels, seeds, pulp, and segment residues. This waste still consists of substantial quantities of bioactive compounds that cause environmental pollution and are harmful to the ecosystem because of their high biological oxygen demand. In recent years, citrus cultivation and the production of processed foods have become a major agricultural industry. In addition to being a substantial source of economy, it is an ideal and sustainable and renewable resource for obtaining bioactive compounds and co-products for food and pharmaceutical industries. In the present article, the various methods of extraction, conventional and modern, as well as separation and isolation of individual bioactive compounds from the extraction mixture and their determination have been reviewed. This article presents both aspects of extraction methods, i.e., on a small laboratory scale and on an industrial mass scale. These methods and techniques have been extensively and critically reviewed with anticipated future perspectives towards the maximum utilization of the citrus waste.

show abstract

Section: Extraction Methodsmentioning

confidence: 99%

Modern Extraction and Purification Techniques for Obtaining High Purity Food-Grade Bioactive Compounds and Value-Added Co-Products from Citrus Wastes

Mahato

Sinha

Sharma

et al. 2019

Foods

212

133

View full text Add to dashboard Cite

show abstract

Vitamin P

Scarborough¹,

Bacharach²

1949

Vitamins &Amp; Hormones

View full text Add to dashboard Cite

Carotene and Citrin Content of Peas as Influenced by Chemical Treatment

Lo¹

1945

Journal of Food Science

View full text Add to dashboard Cite

While the effect of fertilizing treatment on vitamin content of plants is known, relatively little information exists concerning the influence of trace elements. I n an early report, Honeywell and Dutcher (1930) stated that chlorotic spinach grown on soils deficient in manganese contained less vitamin A than normal spinach. Recently Lo and W u (1943) found that the compounds of nickel, molybdenum, aluminum, zinc, copper, and iron so far studied have a physiological function of promoting vitamin P formation in mung-bean sprouts. Since it was not known whether the other parts of plants were similarly influenced, the present investigation, dealing with the effect of specific chemical treatment on the carotene and citrin contents of pea shoots and green peas by field experiment, was initiated. This seemed to be a worthy problem from both biochemical and practical standpoints. EXPERIMENTAL PROCEDUREOne set of field experiments was laid out to test the effect of some specific chemicals (sulphates of nickel, aluminum, and zinc as well as molybdenum oxide) and a complete fertilizer (mixture of ammonium sulphate, bone meal, and straw-ash), singly and in combination. A native variety of pea (Pisum sativum, L . ) , namely Meitan Ying-Chia-Wan-Tou, was used as the experimental plant. The field experiment consisted of three blocks of plots laid out in randomized fashion, giving 10 treatments with three replicates. All plots were three and one-half by five feet with two rows of plants per plot. Each plot had six individual plants. The outside rows of each plot served as guard rows, preventing contamination of any plot by the chemicals and fertilizer used on adjacent plots. Application of the complete fertilizer (ammonium sulphate : bone meal : strawash = 3:1:4 by weight) was roughly such as would be 64 catties per mou before the plant seedlings were planted. All the specific chemicals were used in a concentration of 0.0001 N and applied in 50-c.e. portions per plant at 10-day intervals during the entire experimental period.The method of carotene determination was that recommended by Hughes and Peterson, as reported by Munsey (1937), and the citrin was estimated by a modification of the Lorenz and Arnold (1941) method described in previous papers. Six determinations were made in all instances; results are given (Tables 1 2, 3, and 4). DISCUSSION AND CONCLUSIONFrom an inspection of the above tables it is evident that there was a considerable variation in the carotene and citrin contents of pea shoots 308

show abstract

Preparation and Estimation of Crude Citrin Solutions (Vitamin P) From Lemons

Cited by 5 publications

References 18 publications

Modern Extraction and Purification Techniques for Obtaining High Purity Food-Grade Bioactive Compounds and Value-Added Co-Products from Citrus Wastes

Modern Extraction and Purification Techniques for Obtaining High Purity Food-Grade Bioactive Compounds and Value-Added Co-Products from Citrus Wastes

Vitamin P

Carotene and Citrin Content of Peas as Influenced by Chemical Treatment

Contact Info

Product

Resources

About