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Phytochemical composition and antioxidant characteristics of traditional cold pressed seed oils in South India
Year:
2019
Authors :
Devanesan, Arul Ananth
;
.
Tietel, Zipora
;
.
Volume :
17
Co-Authors:

 Deviram, G., National Centre for Coastal Research (NCCR), Ministry of Earth Sciences (MoES), Pallikaranai, Chennai, Tamil Nadu  600100, India; Mahalakshmi, V., AU-KBC Research Centre, MIT campus, Anna University, Chennai, India, Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu  620024, India; Sivasudha, T., Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu  620024, India;

Facilitators :
From page:
416
To page:
421
(
Total pages:
6
)
Abstract:

Cold press extraction is the ultimate method to extract essential phytonutrients from oil seeds. Other extractions such as chemical and hot press extraction include processes like deodorizing and refining which affect the quality of phytocompounds (essential fatty acids, tocopherols and phytosterols). In this study, antioxidant capacity, tocopherol and fatty acid profiles of six cold-pressed oils (sesame, coconut, peanut, neem, castor and iluppai) were determined. Lipophilic extracts showed excellent DPPH-free radical scavenging activity compared to hydrophilic extracts. Lipophilic extract of sesame oil showed the highest antioxidant capacity in both DPPH (0.61 ± 0.02 TEAC µM/g dw) and ABTS (0.85 ± 0.05 TEAC µM/g dw) free radical scavenging assays. The presence of alpha (α), gamma (γ) and delta (δ) tocopherols were detected and quantified in all the six seed oil samples through UPLC analysis. From the results it was confirmed that γ- tocopherol content is predominant in castor (395.32 ± 2.12 mg/kg), sesame (278.72 ± 2.80 mg/kg) and peanut (104.11 ± 2.86 mg/kg) oils. GC-MS analysis of all the six seed oil samples exhibited fatty acids such as myristic, palmitic, stearic, oleic and linoleic acid in various compositions. The highest levels of total saturated (SFA) in coconut oil, monounsaturated (MUFA) in castor oil and polyunsaturated (PUFA) in sesame oil were quantified at the range of 85.51%, 64.09%, and 31.72% respectively. In conclusion these phytoconstituents from cold pressed oil play a promising role in improving human health without side effects. © 2018 Elsevier Ltd

Note:
Related Files :
fatty acids
GC-MS
Seed oil
Tocopherols
UPLC
Show More
Related Content
More details
DOI :
10.1016/j.bcab.2018.12.018
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
38937
Last updated date:
02/03/2022 17:27
Creation date:
08/01/2019 14:29
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Scientific Publication
Phytochemical composition and antioxidant characteristics of traditional cold pressed seed oils in South India
17

 Deviram, G., National Centre for Coastal Research (NCCR), Ministry of Earth Sciences (MoES), Pallikaranai, Chennai, Tamil Nadu  600100, India; Mahalakshmi, V., AU-KBC Research Centre, MIT campus, Anna University, Chennai, India, Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu  620024, India; Sivasudha, T., Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu  620024, India;

Phytochemical composition and antioxidant characteristics of traditional cold pressed seed oils in South India

Cold press extraction is the ultimate method to extract essential phytonutrients from oil seeds. Other extractions such as chemical and hot press extraction include processes like deodorizing and refining which affect the quality of phytocompounds (essential fatty acids, tocopherols and phytosterols). In this study, antioxidant capacity, tocopherol and fatty acid profiles of six cold-pressed oils (sesame, coconut, peanut, neem, castor and iluppai) were determined. Lipophilic extracts showed excellent DPPH-free radical scavenging activity compared to hydrophilic extracts. Lipophilic extract of sesame oil showed the highest antioxidant capacity in both DPPH (0.61 ± 0.02 TEAC µM/g dw) and ABTS (0.85 ± 0.05 TEAC µM/g dw) free radical scavenging assays. The presence of alpha (α), gamma (γ) and delta (δ) tocopherols were detected and quantified in all the six seed oil samples through UPLC analysis. From the results it was confirmed that γ- tocopherol content is predominant in castor (395.32 ± 2.12 mg/kg), sesame (278.72 ± 2.80 mg/kg) and peanut (104.11 ± 2.86 mg/kg) oils. GC-MS analysis of all the six seed oil samples exhibited fatty acids such as myristic, palmitic, stearic, oleic and linoleic acid in various compositions. The highest levels of total saturated (SFA) in coconut oil, monounsaturated (MUFA) in castor oil and polyunsaturated (PUFA) in sesame oil were quantified at the range of 85.51%, 64.09%, and 31.72% respectively. In conclusion these phytoconstituents from cold pressed oil play a promising role in improving human health without side effects. © 2018 Elsevier Ltd

Scientific Publication
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