Open AccessCitrus sinensis Seed as a Potential Source of Quality Edible and Industrial Oil
Author(s) -
Victor Yao Atsu Barku,
Yaw OpokuBoahen,
Vida Ackon
Publication year - 2020
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2020.22559
Subject(s) - chemistry , behenic acid , palmitoleic acid , food science , linoleic acid , polyunsaturated fatty acid , iodine value , fatty acid , erucic acid , saponification value , acid value , capric acid , citrus × sinensis , oleic acid , orange (colour) , peroxide value , composition (language) , palmitic acid , biochemistry , lauric acid , linguistics , philosophy
Seeds of sweet oranges (Citrus sinensis) were analyzed for oil and fatty acid composition. The crudeoil was extracted by the use of soxhlet extraction. The results showed that oil content is as high as 71%. The physico-chemical assessment gave the following results: refractive index (1.457), peroxidevalue (4.12 meq/kg) and iodine value (34.06 Wijs). The ATR-IR spectrum of oil showed prominentbands at 3008.6, 2921.73, 2852.7, 1742.86, 1709.23, 1460, 1167.66, 1117.39 and 1051.16 cm-1 thatidentified fatty acid composition. The percentage compositions of various classes of fatty acids presentin the oil were polyunsaturated fatty acids (PUFAs, 39.82 %), monounsaturated fatty acids (MUFAs,57.08 %) and saturated fatty acids (SFAs, 3.09 %). The oil has linoleic acid (18:2, n-6) as the onlyPUFA and the second highest fatty acid composition (25.63 %). Palmitoleic acid is the highest MUFA(56.30 %) as well as the highest fatty acid composition while capric acid (C10:0) is the lowest fattyacid (0.02 %). These results and in addition to the low compositions of erucic acid, behenic acid andlignoceric acid indicated that the seed oil of sweet orange is possible suitable for both humanconsumption and industrial purposes.