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All Journal Jurnal Bahan Alam Terbarukan World Chemical Engineering Journal Teknika: Jurnal Sains dan Teknologi Jurnal Teknika Jurnal Pengabdian Dinamika
Retno Sulistyo Dhamar Lestari
Jurusan Teknik Kimia, Fakultas Teknik, Universitas Sultan Ageng Tirtayasa
Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Social Sciences

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PERBANDINGAN METODE UJI KANDUNGAN TOTAL FENOLIK DARI EKSTRAK RUMPUT LAUT EUCHEUMA COTTONII LONTAR BANTEN Denni Kartika Sari; Ahmad Deza; Ina Amilatul Ilma; Retno Sulistyo Dhamar Lestari
Jurnal Teknika Vol 14, No 1 (2018): Edisi Juni 2018
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/tjst.v14i1.5858

Abstract

PENGARUH SUHU DAN WAKTU PENGERINGAN TERHADAP MUTU RUMPUT LAUT KERING Denni Kartika Sari; Indar Kustiningsih; Retno Sulistyo Dhamar Lestari
Jurnal Teknika Vol 13, No 1 (2017): Edisi Juni 2017
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/tjst.v13i1.5850

Abstract

Emerging Trends in the Development of Chitosan Films for Active Food Packaging Barleany, Dhena Ria; Sari, Denni Kartika; Lestari, Retno Sulistyo Dhamar
World Chemical Engineering Journal VOLUME 4 NO. 2 DECEMBER 2020
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v4i2.10594

Abstract

The demand for healthy and safe foods with the minimum use of synthetic materials is increasing very rapidly. Plastic polymers have negative effects on the environment, and great efforts have been made to evaluate the use of various bio-based polymers as alternatives to synthetic plastic packaging. Chitin and chitosan are mostly extracted from crustacean shells or byproducts from processing and handling fish and seafood. As a result, chitosan as a material for food packaging has received much attention and is widely researched because it has unique biological and functional properties. Chitosan for food packaging and food preservation applications can be applied via the method of spraying, immersing, coating, or wrapping films. However, chitosan has several disadvantages including low mechanical properties and high sensitivity to moisture, which are the main limitations for its industrial applications, including food packaging. In this study, the scientific literature of the last 5 years on chitosan-based films for their potential application in the food packaging industry has been extensively reviewed. This review also discussed various strategies that have been implemented to improve the properties of chitosan film, including using plasticizers and cross-linking agents, filling them with nanoparticles, fibers and whiskers and combining them with natural extracts and essential oils as well as with other natural and synthetic ingredients.
EXTRACTION TOTAL PHENOLIC CONTENT OF KETAPANG LEAVES (Terminalia catappa) USING ULTRASONIC Sari, Denni Kartika; Lestari, Retno Sulistyo Dhamar; M, Muhammad Ridho K.; Lusi, Utami Triana
World Chemical Engineering Journal VOLUME 2 NO. 1 JUNE 2018
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v2i1.3387

Abstract

Ketapang leaves (Terminalia catappa) is a plant which has many pharmacological activities one of them is antioxidat activity.  Phenolic compound is one that represented the antioxidant activity. The concentration of phenolic compounds was influenced by the method and condition of extraction. This study was conducted to determine the effect of ultrasonic extraction method, extraction time and the ratio of ethanol : water to total phenolic content in Ketapang leaves (Terminalia catappa). Extraction is completed by ultrasonic extraction method using 96% ethanol-water as solvent with solvent ratio variation (50:50, 60:40, 70:30) in time (5 minutes, 10 minutes, 20 minutes and 40 minutes). Measurment data from total phenolic content of the extracts Ketapang leaves (Terminalia catappa) shows that the extraction with 20 minutes with 96% ethanol-water 50:50 generate the highest total phenolic content, equal to 4862,352941mg GAE / g.
PELATIHAN PEMBUATAN KOMPOSTER DAN LUBANG BIOPORI SEBAGAI SOLUSI PERMASALAHAN SAMPAH ORGANIK DI LINGKUNGAN KRANGGOT KOTA CILEGON Dhamar Lestari, Retno Sulistyo
Jurnal Pengabdian Dinamika Vol 10, No 1 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/dinamika.v10i1.21814

Abstract

Waste management, both organic and inorganic is one of the common problems in the commynity.Community development and transfer of technology on composting and biopores hole techniqueis an effort to enhance the potential of the surrounding environment in the form of residualorganic waste. This event was held in Kranggot village Cilegon District. The method used in thisresearch is the provision of material and Focus Group Discussion. Common problem is thehouseholds waste left unsorted and directly sent to the garbage collector have made the numberof solid waste piling up in the dumping site. This program focus in changing people’s mindset inhandling the household waste, sort the waste, and process the organic waste, installing bioporeson every house and open areas and making biocomposter to transform organic waste intocompost. Through discussion and social intervention, this research has encouraged communityabout the benefits of organic waste as a raw material for making compost.
Co-Authors Afriyanti Rosmadiana Afriyanti Rosmadiana, Afriyanti Ahmad Deza Aldi Fathurohman Barleany, Dhena Ria Bening Dwipermata Bening Dwipermata, Bening Denni Kartika Sari Denni Kartika Sari Denni Kartika Sari Denni Sulistyo Sari, Denni Sulistyo Ina Amilatul Ilma Indar Kustiningsih Jayanudin Jayanudin Kustiningsih, Indar Lusi, Utami Triana M, Muhammad Ridho K. Sari, Denni Kartika Seta Dewo