saponification

[sah-pon″ĭ-fĭ-ka´shun]

conversion of an oil or fat into a soap by combination with an alkali. In chemistry, the term now denotes the hydrolysis of an ester by an alkali, resulting in the production of a free alcohol and an alkali salt of the ester acid.

sa·pon·i·fi·ca·tion

(să-pon'i-fi-kā'shŭn),

Conversion into soap, denoting the hydrolytic action of an alkali on fat, especially on triacylglycerols; in histochemistry, saponification is used to demethylate or reverse blockage of carboxylic acid groups, thus permitting basophilia to occur.

[sapo- (sapon-) + L. facio, to make]

Farlex Partner Medical Dictionary © Farlex 2012

sa·pon·i·fi·ca·tion

(să-pon'i-fi-kā'shŭn)

Conversion into soap, denoting the hydrolytic action of an alkali on fat, especially on triacylglycerols.

[L. sapo- (sapon-), soap + L. facio, to make]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

saponification

Hydrolysis of a fat by an alkali to form a soap and an alcohol, usually glycerol.

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

sa·pon·i·fi·ca·tion

(să-pon'i-fi-kā'shŭn)

Conversion into soap.

[L. sapo- (sapon-), soap + L. facio, to make]

Medical Dictionary for the Dental Professions © Farlex 2012

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References in periodicals archive

The present results concerning iodine value, peroxide value, saponification value, color, specific gravity and refractive index are in corroboration with results reported by Oluba et al.

A COMPARATIVE STUDY ON EXTRACTION AND CHARACTERIZATION OF MELON (Cucumis melo) SEED OIL AND ITS APPLICATION IN BAKING

TABLE II PHYSICAL AND CHEMICAL PARAMETERS OF Tapirira mexicana Marchand OIL Parameters Total lipids content (%) 73.1 [+ or -] 0.17 Humidity (%) 0.17 [+ or -] 0.02 Density (g/ml) 0.90 [+ or -] 0.00 Peroxide value (mEq O2/kg) 2.2 [+ or -] 0.05 Acidity index (mg KOH/g) 1.4 [+ or -] 0.00 Saponification number (mg/g) 165.2 [+ or -] 0.86 Rancidity Negative Values expressed as averages [+ or -] SD.

CARACTERIZACION FISICA Y QUIMICA DEL ACEITE DE LA SEMILLA DE Tapirira mexicana Marchand

Saponification Value###175.0+-0.87###175.2+-1.30###174.0+-0.75###173.0+-0.71

Outcome of Refining on the Physicochemical Properties of Cottonseed Oil

The saponification and iodine values registered in this study are within the range of most oils suitable for food and cosmetics.

PHYSICO-CHEMICAL CHARACTERISTICS AND FATTY ACID PROFILE OF BAILLONELLA TOXISPERMA Pierre TRADITIONALLY EXTRACTED EDIBLE OIL FROM CAMEROON FORESTS

This "saponification" process turned them into a soap-like substance.

Naturally preserved brains found in Spanish mass grave

Refractive index, density, specific gravity, surface tension, acid value, free fatty acid value, saponification value, iodine value, colour and peroxide value were carried out.

DPPH radical scavenging assay, biological activities, nutritional composition and quality parameters of Momordica charantia seeds grown in district Charsadda, KPK, Pakistan

In addition a comparison between two different methodologies as sonication in ultrasonic bath and saponification followed by liquid-liquid extraction is reported.

Determination of Polycyclic Aromatic Hydrocarbons in Tea Infusions Samples by High Performance Liquid Chromatography with Fluorimetric Detection

However, the proximate, fatty acid, amino acid, vitamin, sterol, and mineral compositions, which reflect nutritional value of seeds, and the physicochemical properties such as melting point, refractive index, iodine value, peroxide value, p-anisidine value, acid value, saponification value, p-anisidine value, and oxidative stability, which determine the uses and applications of seed oils, have been not yet analyzed for L.

Chemical Composition, Physicochemical Characteristics, and Nutritional Value of Lannea kerstingii Seeds and Seed Oil

The acidity, saponification, peroxide and iodine values of buriti flour are presented in Table 2.

Dehydration and spraying of buriti pulp (Mauritia flexuosa L.): shelf-life evaluation/Desidratacao e pulverizacao de polpa de buriti (Mauritia flexuosa L.): Avaliacao da vida de prateleira

The fatty acids in the fat from casein and serum were made into their methyl ester by saponification followed by esterification and analyzed by GC-FID.

Physico-Chemical Analysis and Composition of Camel Milk of Bangladesh

In the present study, refractive index, peroxide, saponification, and acid values of different branded and unbranded vegetable oils were determined.

Effect of Storage on Physicochemical Characteristics of Some Selected Vegetable Oils