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All Journal INTEK: Jurnal Penelitian
Mahyati Latief
Politeknik Negeri Ujung Pandang
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GC-MS and Antioxidant Capacity Analysis in Propanol Extract of Carthamus Tinctorious L Sri Indriati; Muhammad Yusuf; Riskayanti Riskayanti; Nur Amaliah; Mahyati Latief; Rahmiah Sjafruddin; Nur Fitriani Usdyana Attahmid
INTEK: Jurnal Penelitian Vol 8, No 1 (2021): April 2021
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v8i1.2801

Abstract

Safflower, were extracted using propanol solvent at different time intervals: 10, 20, and 30 min at a constant temperature of 40°C. The extracts were analyzed by GC/MS technique. The major compounds identified were tetrapentacontane, tetracontane, triacontanol, gamma sitosterol, myristic acid, linoleic acid, stearic acid, palmitic acid, oleic acid, and lauric acid. However, some levels of palmidrol, beta-amyrin, cubenol, and tocopherol were also found in safflower extracts. Most of the volatile compounds were detected between 10–30 min time of extraction. The 30 min time of extraction also showed the maximum content of polyphenols and antioxidants in safflower extracts. Thus, 30 min was suggested as the most suitable time for maximum extraction of bioactive volatiles, antioxidants, and polyphenols from Safflower using propanol solvent.
Extraction Optimization of Pigeon Pea Seed Protein and Yield Using Response Surface Methodology Sri Indriati; Muhammad Yusuf; Muhammad Irsal; Mahyati Latief; Nuraeni Umar; Nur Fitriani Usdyana Attahmid
INTEK: Jurnal Penelitian Vol 9, No 1 (2022): April 2022
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v9i1.3530

Abstract

Pigeon Pea (Casanus Cajan L.) is one of the local foods in South Sulawesi. Pigeon pea seeds contain protein that the body can absorb. This study aims to determine the optimum operating conditions for extracting pigeon pea on protein and yield using Ultrasonic-Assisted Extraction (UAE). Response Surface Methodology (RSM) with Box-Behnken Design (BBD) was used by considering three variables, time (30, 40, and 50 min), temperature (40, 50, and 60oC), and methanol concentration (50, 70, and 90%). The experiment results show that yield ranges from 8.85663% to 31.4766% and 46.1538 mg/l to 15584.6 mg/l. Response variables were computed and used to create the contour plot graphs. The optimum operating conditions for sonication extraction were a time of 44.760 minutes, a temperature of 60oC, and a 90% methanol concentration.
Co-Authors Muhammad Irsal Muhammad Yusuf Nur Amaliah Nur Fitriani Usdyana Attahmid Nur Fitriani Usdyana Attahmid, Nur Fitriani Usdyana Nuraeni Umar Rahmiah Sjafruddin Riskayanti Riskayanti Sri Indriati