Nutritional evaluation of sweet orange citrus sinensis seed oil

Highlighting the nutritional benefit of oil gleaned from the seed of sweet orange Citrus sinensis has become necessary; owing to the fact that the seed is predominantly considered a waste. Therefore, the aim of the present study was to investigate the nutritional benefits of oil extracted from the seed of sweet orange Citrus sinensis of the family; Rutaceae, and order; Sapindales. A total of 2.0 kg of coarsely crushed seeds were immersed in 15 liters of n-hexane for 72 hours in batches with intermittent vigorous shaking and the oil was further extracted using a soxhlet extractor. Other procedures for analysis were performed using standard methods. The result revealed that, the anti-nutrients levels were found to be within the safe limit, vitamin and minerals fell within the daily recommended intake limit. The proximate composition of Citrus sinensis seeds oil revealed that the oil contains; Protein 1.560±0.120, Moisture content 4.636±0.153, Fat 89.810±0.282, Ash content 1.776±0.161, Crude fibre 0.619±0.052 and Carbohydrate 1.614±0.036. Gas Chromatography-Mass Spectrometry (GC-MS) analysis revealed the presence of the following fatty acid compounds; Linoleic acid 37.644%, Palmitic acid 28.051%, Isopropyl linoleate 12.699%, Pentadecanoic acid 9.652%, Stearic acid 5.839%, Butyl linoleate 2.867, and Glutaric acid 2.616%. Therefore, indicating that, the oil extracted from sweet orange Citrus sinensis seeds it’s an excellent choice for both nutritional and industrial purposes.

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Exploring the Antimicrobial Activities of Chrysophyllum albidum Seed oil in Pharmaceutical and the Seeds in Food industry.

Journal of Food and Pharmaceutical Sciences ◽

10.22146/jfps.1465 ◽

2021 ◽

pp. 412-421

Author(s):

Iyabo Oluremi Olabanji ◽

Emmanuel Olugbenga Akinkunmi ◽

Nancy Aniki O ◽

Sunday Michael Arowosegbe ◽

Olukayode Solomon Ajayi ◽

...

Keyword(s):

Seed Oil ◽

Antimicrobial Activities ◽

Proximate Analysis ◽

Test Method ◽

Raw Material ◽

Klebsiella Pneumonia ◽

Crude Fibre ◽

Pharmaceutical Industries ◽

Nutritional Benefits

The anti- microbial activity tests of the seed oil, NaOH and ash soaps of the seed oil, of C.albidum were carried out to determine their effectiveness against gram+, gram– bacteria and some fungi strains. The proximate analysis of C.albidum seeds was performed to determine its nutritional benefits to mankind. Agar diffusion tests using Disc diffusion for the pure oils and soaps while the cup plate test method for dilutions was used in the determination of in-vitro activities. Standard methods as described by AOAC, (1990); AOAC, (1984) and Kjeldahl method described by Chang (2003) were used for proximate determinations. The results show the activity of the oil against Klebsiella pneumonia at a concentration as low as 10 mg/ml. The ash-soap of the leaves shows the highest antimicrobial activities because its MIC is the closest to the standard, Streptomycin. It possesses activity against Escherichia coli and Klebsiella pneumonia at a concentration as low as 5mg/ml. The % proximate analysis composition shows Moisture content, Ash content, Crude Fibre, fat/Oil, Protein, Carbohydrates as follows (14.98, 1.90, 2.09, 2.38, 12.14 and 67.65)%. The study concluded by unleashing the great potential of Chrysophyllum albidum seeds as a useful raw material in food, cosmetics and pharmaceutical industries rather than being regarded as waste in the environment

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