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Kejora Handarini
Universitas Dr. Soetomo
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Journal : Heuristic

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POTENSI EKSTRAK BUNGA ROSELLA (Hibiscus sabdariffa L.) SEBAGAI PEWARNA DAN PENGAWET ALAMI PADA JELLY JAJANAN ANAK Handarini, Kejora
Heuristic Vol 11 No 02 (2014)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/he.v11i02.617

Abstract

Jelly is a highly preferred snack of children, but was reported that jelly products sometimes containing a non food grade dyes and harmful preservatives, whict is’s used for textile processed usually. Rosella flower extracts was containing antibacterial activity such as alkaloid, saponin tanin, and high anthocyanin that could be nature dye. The purpose of this study is to determine how the optimal concentration of roselle flowers extracts can be applied to jelly as a natural dye and preservatives. The methods were: a. extraction of rosella flower. b. application of an extract rosella flower onto the jelly product (the treatments are A0: 0 %A1 : 0.5 % , A2 : 1 % , A3 : 1.5 %) and then storage at refrigeration temperature for 0, 5, and 10 days .Parameters measured were the Total Plate Count (TPC), total mold-yeasts, total coliforms, and product color observations. The results showed for the storaging in 0 to 5 days, roselle jelly with various concentrations have indigenous microbial contaminants (the TPC, mold- yeasts and coliforms) is smaller than the control ( A0: 0% ). While the 10-day storaged, the TPC values , molds - yeasts and coliforms in jelly with roselle extracted was lower than controls, but for all treatments had an exceeding value than the microbiological standards. The results of colour with organoleptic test showed for 0 to 5 days of storage refrigerator, showed that roselle jelly A3 ( 1.5 % ) has the best value compared to other treatments, the value of a little love to love ( and its value is higher than controls). On the 10th day of storaged, for the treatment of roselle jelly A1, and A2 has a value of color under control, while the A3 is equal to the control. Based on the microbiological and organoleptic tests, the best roselle jelly is A3 sample and 5 days storaged in the refrigerator.Kata Kunci: Rosella, pengawet alami, pewarna alami, jelly
Co-Authors Achmad Kusyairi Achmad Kusyairi Adiansah, Amanda Aprilia Andi Athifa Putri Aprilianto, Richardus Arlin Besari Djauhari Arlin Besari Djauhari Aryani, Amalia Dwi Bambang Sigit Sucahyo Bambang Sigit Sucahyo Cahyani Tri Susilo, Regitha Pandu Chasanah, Dwi Asmaul Christian Theodorus, Fransiskus Devi, Yuni Astika Diana Puspitasari Didik Budiyanto Didik Trisbiantoro Djauhari, Arlin Besari Endang Retno Wedowati Endang Sri Rahayu Eni Harmayani Fadjar Kurnia Hartati, Fadjar Kurnia Falesta, Pasyaura Ramadhani Fungki Sri Rejeki Gultom, Sinta Febriyanti Husnul Khotimah Jannah, Jumrotul Jehandu, Maria Yuliana Permatasari Karimullah, RB. Moh. Kasmiati Kasmiati Kurnia Hartati, Fadjar Kusyairi, Achmad Madyowati, Sri Oetami Mekasari, Firsta Koesdyah Metusalach Metusalach Mirza Ramadhani Ningtyas, Rosidah Wahyu Nirmala Siregar, Rena Nunuk Hariani Nunuk Hariyani Nunuk Hariyani Nunuk Hariyani Nurfaidah Nurfaidah Nursakinah Latuconsina Nurul Hayati NURUL HAYATI Ophirtus Sumule Orodiputro, Charolin Prajudanti, Adhania Andika Pramitha, Asti Rizkiana Prayudanti, Adhania Andika Rahmatang Rahmatang Rahmatul Khasanah Rahmiati, Retnani Ramadhani, Mirza Retnani Rahmiati Retnati Rahmiati Ricky Indra Nur Pratama Saraswati, Exist Siregar, Rena Nirmala Sri Oetami Madyowati Sri Oetami Madyowati Sri Oetami Madyowati Sucahyo, Bambang Sigit Sumaryam Sumaryam Sumaryam Suriana Laga Tajuddin Noor, M. Tirtawan, Titus Trisbiantoro, Didik Tyas Utami Wa Ode Nurul Azizah Nida Ul Haq Yudo, Wandoko Sungkowo Yuliani, Novia Dwi Yuyun Yuniati Yuyun Yuniati Yuyun Yuniati