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All Journal MEDIA UNIKA - Majalah Ilmiah BERITA BIOLOGI
Apriadi Situmorang
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education

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PENGGUNAAN BERBAGAI JENIS BAHAN PEMANIS BUATAN PADA PEMBUATAN JAM PEPINO Pandiangan, Maruba; Situmorang, Apriadi
MEDIA UNIKA - Majalah Ilmiah Vol 1, No 2 (2013)
Publisher : Universitas Katolik Santo Thomas Sumatera Utara

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Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh jenis dan konsentrasi bahan pemanis buatan terhadap mutu jam pepino. Bahan yang digunakan dalam penelitian ini adalah buah pepino yang diperoleh dari supermarket Berastagi, pemanis buatan aspartam, asesulfam-K, sukralosa, sakarin, tepung maizena, gum arab, garam, jeruk nipis, vanila dan gula. Penelitian ini dilaksanakan di Laboratorium Pengolahan Hasil Pertanian Universitas Katolik Santo Thomas Sumatera Utara Medan. Penelitian ini dilakukan dengan rancangan acak lengkap (RAL) faktorial, yang terdiri dari dua faktor perlakuan. Perlakuan pertama yaitu jenis pemanis yang terdiri dari P1 = aspartam, P2 = asesulfam-K, P3 = sukralosa dan P4 = sakarin. Faktor kedua yaitu konsentrasi pemanis yang terdiri dari K1 = 0,02 %, K2 = 0,04 %, K3 = 0,06 % dan K4 = 0,08 %. Hasil penelitian menunjukkan bahwa kadar vitamin C, total asam, total padatan terlarut dan nilai organoleptik tertinggi terdapat pada jenis pemanis sukralosa, sedangkan kadar air tertinggi terdapat pada jenis pemanis Sakarin. Semakin tinggi konsentrasi zat pemanis kadar vitamin C, total padatan terlarut dan nilai organoleptik semakin meningkat, sedangkan total asam dan kadar air semakin menurun. Untuk memperoleh mutu jam pepino yang baik, dapat dilakukan dengan menggunakan pemanis sukralosa atau sakarin dengan konsentrasi 0,08 %.
IDENTIFIKASI GALUR-GALUR PADI MUTANINSERSI TOLERAN DAN RENTAN CEKAMAN SALINITAS BERDASARKAN KARAKTER MULTIVARIAT PERTUMBUHAN DAN BIOKIMIA PADA FASE VEGETATIF Situmorang, Apriadi; Zannati, Anky; Widyajayantie, Dwi; Nugroho, Satya
BERITA BIOLOGI Vol 10, No 4 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (538.654 KB) | DOI: 10.14203/beritabiologi.v10i4.765

Abstract

Growth and biochemical characters of thirty-three Nipponbare-based rice mutant lines independently harboring activation-tag in salt stress condition were investigated. Rice cv Nipponbare wild type, IR29 and Pokkali were used as isogenic, susceptible, and tolerant cultivars, respectively. Plants were grown in Yoshida nutrient solution containing NaCI (6 g/1) as the stress treatment and in Yoshida nutrient solution without NaCI as the control. Evaluation of salt tolerance was conducted at 21 days after salinization.The results showed that there was a significant difference in growth characters among genotypes in reduction of the plant height,root length, shoot fresh weight, root fresh weight, shoot dry weight, as well as in the root dry weight. Biochemical characters of the genotypes also showed significant difference in their reduction of chlorophyll-a and chlorophyll-b concentrations,total carotenoids and proline accumulation. Based on multivariate growth and biochemical characters,T3.PMO.VI.63.5a.30.9,T3.PMO.VI.30.1a.21.1, T3.PMO.V1.63.5a.33.7F3.PUR.IX.49.1d.l.6.5,T3.PMO.VI.81.3a.4.4, F3.PUR.IX.49.1d.l.6.5,and F3.PUR.VIII.5.1f.l.4.8 were assumed as potential salt-tolerant lines, respectively, while mutant lines T3.PMO.VI.30.1a.l07.7,T3.PMO.VI.63.5a.20.6,T3.PMO.III.4.4c.7.2,andT3.PMO.VI.30.1a.51.1 were assumed as salt-susceptible lines respectively.
Co-Authors Anky Zannati Dwi Astuti Dwi Widyajayantie Enung Sri Mulyaningsih Kurniawan Rudi Trijatmiko, Kurniawan Rudi Maruba Pandiangan Pantouw, Carla F. Satya Nugroho Sri Indrayani, Sri Syamsidah Rahmawati, Syamsidah TRI JOKO SANTOSO Vincentia Esti Windiastri, Vincentia Esti