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Journal : BERITA BIOLOGI

 1 
EVALUASI KUALITAS BEBERAPA GENOTIPE BAYAM (Amaranthus sp) PADA PENANAMAN DI JAWA BARAT Suwarni Tri Rahayu; Ali Asgar; Iteu M Hidayat; Kusmana Kusmana; Diny Djuariah
BERITA BIOLOGI Vol 12, No 2 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v12i2.527

Abstract

Spinach is one of leafy vegetables species that contain lots of vitamins and minerals. This study aims to examine the quality of several genotypes of spinach grown at two highland sites of West Java (Cipanas and Lembang).This experiment was conducted using Split Plot design,with five lines and five replications. Three genotype were tested, namely B1 = By16 , B2 = By18 , and B3 = By21, as well as two commercial varieties on the market spinach (B4 = red Giti , B5 = Kusuma).Measurements included physical parameters (length and width of leaves,stem diameter, texture, and color) and chemical parameters (water content, vitamin C, and fiber). The experiment was conducted in the laboratory of Physiology Vegetable Research Institute, Lembang from March to September 2012.The results showed that the content of vitamin C and fiber in genotype B1 and B2 were not significantly different from the control genotype.Similarly, the results of measurements of the length and width parameters of the leaves on all the tested genotype was not significantly different from the control genotype. Average length and width leaves of the genotype tested in Cipanas significantly higher than those tested in Lembang. Spinach has a shelf life of 1 day at room temperature in the storage area of Lembang ( 21±2°C and 85% RH ).
KUALITAS UMBI BEBERAPA KLON KENTANG (Solanum tuberosum L.) DATARAN MEDIUM UNTUK KERIPIK Ali Asgar
BERITA BIOLOGI Vol 12, No 1 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v12i1.515

Abstract

Quality testing of several potato clones (Solanum tuberosum L.) planted at mid level area for potato chips. Objective of the research is to test the quality of clones/cultivars resulted from selection. Quality test of 8 selective clones was conducted from November 2010 to February 2011 in post-harvest laboratory of Research Institute for Vegetables Lembang. Research was arranged in randomized complete block design with 4 replications. Treatments consisted of 1) klon 395195.7, 2) klon 397073.7, 3) Granola (control), 4) Merbabu-17(control), 5) 394614.117, 6) CIP 3970.77.16, 7) CIP 391846.5, and 8) CIP 394613.32. The result of research showed that differences in potato clones (as raw material) have different characteristic on specific gravity, dry matter, reducing sugar content, moisture content, starch content. There were also differences in oil content, color, flavor, crispyness and appearance of chips produced. The best clones for potato chips were Merbabu-17 (specific gravity 1.08 g/ml, dry matter 11.18%, reduction sugar 0.60%, moisture content 88.82%, starch content 4.52% and fat content of chips 38.66%), and CIP394613.32 (specific gravity 0.99, dry ingredient 12.17%, reduced sugar 0.09%, moisture content 87.83%, starch content 3.50%, fat content of chips 28.25%), and Granola (specific gravity 1.02, dry matter 17.70%, reduction sugar 0.12%, moisture content 82.30%, starch content 6.67%, fat content of chips 38.21%).
PENGARUH SUHU PENYIMPANAN DAN WAKTU PENGKONDISIAN UNTUK MEMPERTAHANKAN KUALITAS KENTANG KULTIVAR MARGAHAYU Ali Asgar; ST Rahayu
BERITA BIOLOGI Vol 13, No 3 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v13i3.672

Abstract

The study aimed to determine the effect of storage temperature and time reconditioning to maintain the quality of potato cultivars Margahayu. The experiments were conducted in the Laboratory of Postharvest of Vegetable Crops Research Institute (BALITSA) from July to October 2012. Altitude research is ± 1200 masl with temperatures between 14.94 - 24.61°C and the relative humidity (rH) 85.56%.Experimental design used in this study was factorial a randomized complete design consisting of 2 factors. Treatments were factorial combinations of storage temperature (4 °C, 7 °C and 10 °C) and time reconditioning (0 days, 3 days, 6 days and 9 days).The number of replications for each treatment was 3. The results of research showed that there is interaction between storage temperature and reconditioning on reducing sugar content and vitamin C. Storage temperature and reconditioning treatments were positive affect on Total Soluble Solid (TSS) and organoleptic chips. The treatment can maintain the quality of the potato tuber is the storage temperature 7 °C, 10 °C with a time of 6 to 9 days reconditioning.
Co-Authors Darkam Musaddad Diny Djuariah Iteu M Hidayat Kusmana Kusmana Rahmat Sutarya ST Rahayu Suwarni Tri Rahayu