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Extraction of oil from calophyllum inophyllum seeds optimization and kinetics studies of ultrasonic-assisted extraction

Extraction of oil from calophyllum inophyllum seeds optimization and kinetics studies of ultrasonic-assisted extraction / Faiznur Mohd Fuad
Minyak daripada biji Calophyllum inophyllum (C. inophyllum) telah diekstrak dengan menggunakan dua teknik yang berbeza iaitu, teknik pengekstrakan ultrasonik (UAE) dan pengekstrakan Soxhlet (SE). Hasil ekstrakan minyak tertinggi yang telah direkodkan daripada teknik pengekstrakan ultrasonik adalah 55.44 ± 0.53 % pada masa pengekstrakan 20 minit, suhu pengekstrakan 40 °C, kuasa ultrasonik 210 W, nisbah cecair kepada pepejal (L/S) 20 mL/g dan n-heksana sebagai pelarut. Manakala, 70.21 ± 0.36 % hasil ekstrakan telah diperolehi bagi pengekstrakan Soxhlet pada masa pengekstrakan 240 minit, suhu pengekstrakan 85 °C, nisbah cecair kepada pepejal 35 mL/g dan n-heksana sebagai pelarut. Minyak biji C. inophyllum yang diekstrak daripada kedua-dua teknik mengandungi jenis asid lemak yang sama, iaitu asid oleik, asid palmitik, asid linoleik, asid stearik dan asid behenik. Pengoptimuman bagi proses pengekstrakan ultrasonik telah dikaji dengan menggunakan kaedah permukaan sambutan (RSM) melalui reka bentuk ‘Box-Behnken’ (BBD). Ramalan hasil minyak maksimum sebanyak 56.20 % telah diperolehi pada 21 minit masa pengekstrakan, 42 °C suhu pengekstrakan, 210 W kuasa ultrasonik, 21 mL/g nisbah cecair kepada pepejal dan n-heksana sebagai pelarut. Untuk kajian kinetik bagi proses pengekstrakan ultrasonik, model Patricelli didapati sangat berpadanan dengan data pengekstrakan dengan R2 > 0.974 dan nilai MRPD < 10 %. Oleh itu, ia sesuai digunakan untuk menggambarkan proses pengekstrakan minyak daripada biji C. inophyllum. _______________________________________________________________________________________________________ Calophyllum inophyllum seeds oil was extracted using two different extraction techniques, namely, ultrasonic-assisted extraction (UAE) and Soxhlet extraction (SE). The highest oil yield attained from UAE was 55.44 ± 0.53 % at an extraction time of 20 min, extraction temperature 40 °C, ultrasonic power 210 W, liquid to solid (L/S) ratio 20 mL/g and n-hexane as the solvent. Meanwhile, 70.21 ± 0.36 % of oil yield was obtained from SE when the extraction time was 240 min, extraction temperature 85 °C, L/S ratio 35 mL/g and n-hexane as the solvent. C. inophyllum seeds oil extracted from these two techniques contained similar types of fatty acids such as oleic acid, palmitic acid, linoleic acid, stearic acid and behenic acid. The UAE process of C. inophyllum seeds oil was further optimized using Response Surface Methodology (RSM) via Box-Behnken design (BBD). The maximum predicted oil yield of 56.20 % was obtained at an extraction time of 21 min, extraction temperature 42 °C, ultrasonic power 210 W, L/S ratio 21 mL/g with n-hexane as the solvent. For the kinetics evaluation of UAE process of C. inophyllum seeds oil, it was found that the Patricelli’s model fitted well to the extraction data with R2 > 0.974 and MRPD value < 10 %. Thus, it is adequate to describe the extraction process of oil from C. inophyllum seeds.
Contributor(s):
Faiznur Mohd Fuad - Author
Primary Item Type:
Thesis
Identifiers:
Accession Number : 
Language:
English
Subject Keywords:
Calophyllum inophyllum; extraction; (UAE)
First presented to the public:
3/1/2016
Original Publication Date:
10/11/2019
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Chemical Engineering
Citation:
Extents:
Number of Pages - 143
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2019-11-12 11:47:12.363
Submitter:
Mohd Jasnizam Mohd Salleh

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Extraction of oil from calophyllum inophyllum seeds optimization and kinetics studies of ultrasonic-assisted extraction1 2019-11-12 11:47:12.363