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All Journal Trikonomika: Jurnal Ekonomi Jurnal Sains dan Teknologi Reaksi QiST: Journal of Quran and Tafseer Studies
R Ridwan
Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)
Religion Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences Other

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Thrifting Import in the Perspective of Qur'anic Muamalah Exegesis, Social Fiqh, and Environmental Ethics within the SDGs Framework Mutaqin, Enjen Zaenal; Ridwan, R; Naqiyah, N; Ahmed, Ishfaq
QiST: Journal of Quran and Tafseer Studies Vol. 4 No. 3 (2025): December
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/qist.v4i3.13941

Abstract

This study investigates the legality, socio-environmental implications, and policy relevance of imported second-hand clothing (thrifting import) using an integrative theoretical framework that explicitly combines ecotheology, fiqh sosial Kiai Sahal Mahfudh, and fiqh muamalah. The research addresses the central problem of how thrifting imports intersect with Islamic legal norms, sustainability ethics, and state regulations amidst rising concerns over waste, illegal trade, and threats to local industries. Using qualitative library research supported by hermeneutic and content analysis methods, this study examines classical and contemporary fiqh sources, Qur'anic exegesis on muamalah, literature on circular economy and sustainable consumption, as well as regulatory documents and statistical reports. The findings show that thrifting import does not fulfill key requirements of a valid sale (ma‘qūd ‘alayh), contains elements of gharar and bāṭil, contributes to ecosystem degradation, and disrupts the textile industry. The study also formulates policy implications by proposing a maqāṣid-oriented regulatory design, including empowerment strategies for affected small traders, strengthening domestic industry, and environmental sustainability measures. These recommendations highlight the importance of integrating Islamic legal ethics with national economic and ecological policies.
FORMULATION OF BAR SHAMPOO BASED ON Eucheuma cottonii SEAWEED EXTRACT WITH VARYING CONCENTRATIONS OF SODIUM COCOYL ISETHIONATE Hidayana, Acut Rahmatul; Ridwan, R; Wijaya, Nanang Rahmat
Jurnal Sains dan Teknologi Reaksi Vol 23, No 02 (2025): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v23i02.8858

Abstract

This study aims to formulate shampoo bars as an environmentally friendly alternative hair care product by utilizing nutrient-rich Eucheuma cottonii seaweed extract and varying the concentration of Sodium Cocoyl Isethionate (SCI) as a natural surfactant that does not irritate the scalp. The E. cottonii extract was obtained through maceration with 96% ethanol and concentrated using a rotary vacuum evaporator. The SCI concentrations used were 30%, 35%, 40%, 45%, and 50%, while the E. cottonii extract concentrations were 2%, 6%, 10%, 14%, and 18%. The physical quality of the shampoo bar was evaluated through acidity (pH) testing, moisture content, foam stability, organoleptic testing (color, aroma, texture), and irritation testing. The results showed that all formulations had a pH of 5.5–6.33, meeting SNI 06-2692-1992 standards. The highest moisture content was recorded at 16.96% in SCI 30% and 18% extract, while the lowest was 5.26% in SCI 50% and 2% extract. Foam stability increased with increasing SCI, with the highest foam stability percentage of 79.22% in SCI 50% and 2% exract. Organoleptic testing showed good acceptance of color and texture, with the aroma of some formulas slightly changing to be less fresh, but generally still acceptable to the panelists. Irritation testing on 25 panelists did not show any serious irritation, indicating the optimal quality of the shampoo bar produced.  Keywords: Eucheuma cottonii, Maceration, Physical Quality, Shampoo bar, Sodium Cocoyl Isethionate
Co-Authors Ahmed, Ishfaq Aida, Atiqah Alfian Putra Amalia, Zuhra Halim Zaini, Halim Hidayana, Acut Rahmatul Ilmi, Awanis Irwan, I Muhammad Nasir Muhammad Yunus Mutaqin, Enjen Zaenal Nahar, N Naqiyah, N Pardi, P Wijaya, Nanang Rahmat