Chemical profile, physicochemical-sensory properties, trans-esterification and biological efficacy of agro-waste seed oils in Malaysia
This study aims to investigate the potential use of biochemical seed oils of agro-wasteas anti-trypanosomal, anti-oxidant, and anti-bacterial edible oil, sun-protection oil,and biodiesel. A comparative study was conducted to examine the chemical profile,physicochemical-sensory properties, and trans-...
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| Format: | thesis |
| Language: | eng |
| Published: |
2019
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| Subjects: | |
| Online Access: | https://ir.upsi.edu.my/detailsg.php?det=6506 |
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| Summary: | This study aims to investigate the potential use of biochemical seed oils of agro-wasteas anti-trypanosomal, anti-oxidant, and anti-bacterial edible oil, sun-protection oil,and biodiesel. A comparative study was conducted to examine the chemical profile,physicochemical-sensory properties, and trans-esterification of seed oils collectedfrom agro-waste in the Mualim district. Five drying techniques were tested beforeextracting the seed oils. Standard methods were then used to determine the chemicalcompounds, physicochemical-sensory properties, and bio-activity of the extractedseed oils. The analysis performed on such oils showed there were significantdifferences in the amount of seed oils between drying techniques, F (dfb, dfw) = 39.89,p = 0.00. Specifically, the analysis showed the microwave-drying technique producedthe highest oil yield except for Carica papaya. L and Cucurbita sp, and the seed oilsextracted from Mangifera indica had the best antioxidant property. Also, significantvariations were detected in the bacterial inhibition zones depending on the species anddifferent oil concentrations, with the highest inhibition zone being found in the seedoils extracted from M. indica and C. papaya. L. Furthermore, the highest and lowestphenolic contents were obtained from C. papaya. L and Durio zibethinus,respectively. Meanwhile, the highest and lowest flavonoid contents were observed inC. papaya. L and Cucurbita sp, respectively. In addition, the percentages of biodieselobtained from Nephelium lappaceum, Cucurbita sp, M. indica, and C. papaya. L were94.13%, 96.81%, 93.24%, and 76.14%, respectively. In conclusion, the findingsindicate that seed oils extracted from C. papaya. L, Cucurbita sp, M. indica, C.papaya. L, D. zibethinus, and Artocarpus heterophyllus Lam have excellent antioxidantand anti-bacterial properties that can be manufactured into edible oil and sunprotectionoils, whereas seed oils extracted from C. papaya. L, Cucurbita sp, M.indica, and C. papaya. L can be efficiently made into biodiesel. As such, thesefindings will have a significant implication on the use of C. papaya. L, Cucurbita sp,M. indica, and C. papaya. L in the energy, medical, and food industries. |
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