Halal adalah sesuatu yang diperbolehkan menurut ketentuan syariat Islam, sedangkan Thayyib adalah sesuatu yang baik, suci/bersih, dan tidak berbahaya bagi kesehatan. Pada 17 Oktober 2019, Badan Penyelenggara Jaminan Produk Halal Kementrian Agama mulai menerapkan peraturan bahwa semua produk makanan yang mengandung unsur hewani harus bersertifikat halal. Sertifikasi halal merupakan fatwa tertulis Majelis Ulama Indonesia yang menyatakan kehalalan suatu produk sesuai dengan syariat Islam. Sertifikat halal berfungsi sebagai salah satu alat bagi UMKM untuk meningkatkan nilai tambah produk yang dihasilkan, serta memberikan ketenangan bagi konsumen, terutama bagi konsumen Muslim. Selain itu, UMKM ditantang untuk menerapkan Sistem Jaminan Halal sehingga mutu dan kualitas produk bahkan integritas suatu unit usaha menjadi lebih baik di mata konsumen. Hal tersebut merupakan eksisting kondisi yang dimanfaatkan oleh Tim Pengabdi. Tim Pengabdi memfasilitasi UMKM pangan dalam meningkatkan kesadaran akan pentingnya kaidah halal pada produk-produk nya melalui serangkaian acara Workshop Halal ITS.
Synthetic dye waste of textile industry has contaminated the water and aquatic living organism. One of the solution is used teak leaves as the natural dye. Common conventional extraction process is soxhletation which need more time and more solvent. One of extraction method that has been developed is ultrasound assisted extraction (UAE). The objectives of this research were to study the effect of solvent, extraction time, pH, and extraction yield. The conclusion of this research was optimum yield of teak leaves extract about 42,79% at pH 3 and extraction time of 20 minutes with aquadest as the solvent using UAE method. If natural dye of taek leaves was used on cotton, the color will change depend on fixator that was added. In GC-MS analysis, some compound that were detected are decanoic acid methyl ester and methyl tetradecanoate. Both of the compound have chromophore cluster.
One alternative to reduce the effect of water pollution from the textile industry is to replace the use of synthetic dye with the natural one. Henna leaves are one of the natural dye sources which has lawsone, a unique substance that produces orange colour. Some commonly used conventional extractions are soxhletation and maceration. One extraction method that is tried to be developed in this study is the Ultrasound-assisted Extraction. The effects of feed ratio to solvent, time, temperature and solvent types were investigated and discussed in this study. The highest yield from the extraction of Henna leaves was found to be 17.96% which was achieved at pH 1 with the extraction time of 10 minutes, feed/solvent ratio of 0.02, and aquadest solvent. Based on the both qualitative and quantitative analysis of the extracted colour, the ultrasound assisted method was found to be more effective and efficient than the soxhletation method.
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