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Journal : Agrointek

STABILITAS SENYAWA FENOLIK DALAM EKSTRAK DAN NANOKAPSUL KELOPAK BUNGA ROSELLA PADA BERBAGAI VARIASI pH, SUHU DAN WAKTU Ike Sitoresmi M Purbowati; Khaswar Syamsu; Endang Warsiki; Herastuti Sri
AGROINTEK Vol 10, No 1 (2016)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v10i1.2023

Abstract

The extract which is still in liquid form, has several weaknesses, such as unstable in enviroment changes, low flexibility uses and trouble in material handling and transportation.  For these reasons, nanoencapsulation technique using β-siklodextrin as matrix agent is an alternative way. The aims of this research were characterization of total phenols, antioxidant activity of nanoencapsulation and the stability of the extract as well as nanocapsules against the changes of pHs, temperatures and boiling times.  Nanocapsules of roselle extract was containing phenol 4,53 + 0,26 mg/g, anthocyanin 2,99 + 0,18 mg/g, vitamin C 2,77 + 0,04 mg/g and water moisturizer 5,16 + 0,03%, antioxidant activity 49%.  Nanocapsules more resistence against the enviroment changes than the extract itself.  The stability test against the enviroment changes, the nanocapsules form more stable than the extract.  Showed with the slope of linier regression of nanocapsules form for phenols and antioxidant activity, respectively were: 0,111; 1,307 lower than the extract : 2,825; 7,634.  Nanocapsules more resistence against temperature and boiling time than the extract itself.  The stability test against temperature and boiling time, the nanocapsules form more stable than the extract.  Showed with the slope of linier regression of nanocapsules for phenols and antioxidant activity respectively were: 1,3315; 0,3162 lower than the extract : 1,5864; 0,5389
Aplikasi sakarifikasi dan fermentasi simultan dalam produksi bioetanol dari rebung bambu Griselda Happy Ramadhani; Khaswar Syamsu; Ika Amalia Kartika; Irvan Setiadi Kartawiria
AGROINTEK Vol 18, No 2 (2024)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v18i2.17294

Abstract

Bambu muda atau rebung memiliki sumber selulosa dan berpotensi untuk produksi bioetanol. Rebung juga memiliki kandungan lignin yang rendah yaitu 0,89%, sehingga memungkinkan untuk tidak dilakukan proses pre-treatment. Rebung bambu merupakan salah satu bahan yang berpotensi untuk produksi bioetanol mengingat laju produktivitas yang tinggi yaitu 8.124 kg/ha/tahun. Tujuan dari penelitian ini adalah menganalisis data produksi bioetanol dari rebung dengan teknik SSF menggunakan konsorsium mikroba Trichoderma reesei dan Saccharomyces cerevisiae. Mikroba T. reesei digunakan untuk menghasilkan enzim selulase yang menghidrolisis selulosa menjadi gula sederhana, sedangkan S. cerevisiae digunakan untuk memproduksi bioetanol dari gula yang dihasilkan sebelumnya. Sintesis bioetanol terdiri dari dua tahap utama yaitu hidrolisis dan fermentasi. Pada penelitian sebelumnya, proses hidrolisis dan fermentasi dilakukan secara terpisah menggunakan metode SHF (Separated Hydrolysis Fermentation), sedangkan pada penelitian ini dilakukan dengan menggunakan metode SSF (Simultaneous Saccharification and Fermentation) yang diharapkan menghasilkan efisiensi substrat, Yp/s, dan laju produktivitas bioetanol yang lebih tinggi dibandingkan metode SHF. Penelitian ini dilakukan menggunakan aerasi 1 vvm dan agitasi 125 rpm selama 72 jam.  Hasil penelitian menunjukkan bahwa produksi  bioetanol tertinggi di waktu 72  jam sebesar 6,94 g/L dengan laju produktivitas bioetanol  0,08 g/L/h dan  rendemen produk (Yp/s) 0,19 g bioetanol/g substrat. Hasil penelitian ini menunjukkan bahwa rebung merupakan media yang layak untuk produksi bioetanol. Rebung memiliki kandungan selulosa yang potensial sebagai substrat untuk T. reesei dan terbukti menghasilkan bioetanol yang lebih tinggi dibandingkan teknik SHF dengan bambu pada penelitian sebelumnya.
Kandungan kimia kemenyan Sumatra Utara (Styrax benzoin) dan prospek pengembangannya: tinjauan literatur Ridwansyah, Ridwansyah; Sunarti, Titi Candra; Syamsu, Khaswar; Fahma, Farah; Julianti, Elisa
AGROINTEK Vol 19, No 3 (2025)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v19i3.27527

Abstract

North Sumatra is the largest producer of incense (benzoin) in Indonesia and the world. There are 3 varieties of incense that have the potential to be developed. Indonesia has exported incense to Singapore, Malaysia, and China. Incense is exported in the form of raw materials, so the added value is minimal. In order to increase the added value of incense, it can be produced into incense extract. So far, extraction methods have been carried out using conventional methods, including maceration, boiling with water, and distillation with water vapor. The potential of incense has not been fully utilized, especially from its extraction method, so it still needs to be developed. This article aims to review and identify the chemical components of frankincense (Styrax benzoin) and its extraction methods. In addition, the prospects for product development from frankincense are also discussed. Incense extraction with Ultrasonification Assistant Extraction (UAE) is expected to increase the efficiency of the extraction process. The use of solvents and low temperatures, as well as a short extraction time, can maintain the quality of the incense extract. Incense extract can be applied as raw material for perfumes, pharmaceuticals, medicines, and nano applications such as anticancer and antibiofilm. The incense consists of some active ingredients such as cinnamic acid, benzoic acid esters (such as coniferyl cinnamate and cinnamyl), pinoresinol, -caumary benzoate, benzoic acid esters, and triterpenes. These active ingredients are applied as antibacterial and antioxidants. This literature review provides an overview of the characteristics of active ingredients in incense to expand its applications. Incense extract can be applied as a food additive, pharmaceutical, and health ingredient.
Co-Authors . Gunawan . Gunawan A. Aziz Darwis A. Herryandie Abdul Aziz Darwis Adhi Kusnadi Akhmad Endang Zainal Hasan Anas Miftah Fauzi Anggun Rahman Rahman Ani Suryani Ani Suryani Aninda Sekar ZAHRA Anwar Nur Anwar Nur Ardani Lukman ASEP RISWOKO ASTUTIATI NURHASANAH Bambang Prasetya Bambang Prasetya Bambang Prasetya Bambang Prasetya Bustomi - Bustomi Darwis, Abdul Aziz Dede Rais Diana Dewi Diana Dewi, Diana Diana Nurani Djumali Mangunwidjaja Djumali Mangunwidjaja Djumali Mangunwidjaja Dwi - Susilaningsih Dwi Purnomo Dwi Purnomo Dwi Setyaningsih Dyah Noor Hidayati DYAH NOOR HIDAYATI E. Gumbira Sa’id E. Gumbira-Sa’id E. Mardliyati Elisa Julianti Endang Gumbira Said Endang Warsiki Endang Warsiki dan Citra Dewi Wahyono Putri (E-Jurnal Agro-Industri Indonesia) Eni Dwi Islamiati Eni Dwi Islamiati Eni Dwi Islamiati, Eni Dwi Erwahyuni E Prabandani ERWAHYUNI ENDANG PRABANDARI ERWAHYUNI ENDANG PRABANDARI Erwahyuni Prabandari Erwahyuni Prabandari, Erwahyuni Essa Annisa Syadiah Etik Mardliyati Etik Mardliyati Etik Mardliyati, Etik Etty Riani FARAH FAHMA FENTRI PARAMITHA PUTRI Fitriani Kasim Gamma Irca Pradikta Griselda Happy Ramadhani Gumbira-Sa'id, E Gustri Yeni Gustri Yeni Han Roliadi Hanifah FUADI Hanny Hafiar Hendri Muchtar Hendri Muchtar, Hendri Herastuti Sri I Nyoman Jaya Wistara Iftachul Farida Ika Amalia Kartika Ike Sitoresmi M Purbowati Illah Sailah Irawadi Jamaran Irvan Setiadi Kartawiria IS HELIANTI Isroi Isroi Isroi Jayawarsa, A.A. Ketut Joko Santoso Kasid, Sri Kaidah kusnadi, adhi Lanjar Sumarno Lanjar Sumarno Lestari, Puji Liesbetini Haditjaroko Liesbetini Hartoto Lucky Risanto M Irfani ABDULLAH M. ANWAR NUR M. Daud Machfud Mala Nurilmala Manalu, Lamhot Mardliyati, Etik Muhammad Arif Darmawan Muhammad Daud Muhammad Rasyid RAMADHAN Muhammad Tasrif Muhammad Tasrif Mulyorini Rahayuningsih Murdiyatmo, Untung Muslich Muslich, Muslich N. A. Evalia Nabilah, Siti Nadia STEPANI Nastiti Siswi Indrasti Nasution, Nurul Cinthiya nFN Misgiyarta NIKNIK NURHAYATI Ninik Purbosari Nur Atifah Nur Richana Nurika Asih SETIYANI Nusaibah - Nusaibah Prayoga SURYADARMA Ridwansyah Ridwansyah Rini Purnawati Rofiq Sunaryanto Rofiq Sunaryanto S Heris Anita, S Heris S Joni Munarso Sa’id, E. Gumbira Sapta Raharja Sarifah Nurjanah Selvia Mahilda RIDHOHA Shinta PERMATASARI Siti Nabilah Sony Hartono Wijaya Sudirman Sudirman Suharyanto Suprihatin Suprihatin Surono SURONO Tajuddin Bantacut Taufik Hidayat Titi Candra Sunarti Tri Panji Tun T. Irawadi Tun Tedja Irawadi Tun Tedja Irawadi Wahono Sumaryono Wasrin Safii Wasrin Syafii Widya FATRIASARI Widya Fatriasari Yandra Arkeman Yandra Arkeman Yandra Arkenan Yeni, Gustri Yeni, Gustri