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All Journal Journal of Tropical Soils Indonesian Journal of Forestry Research Jurnal Penelitian Hutan dan Konservasi Alam Jurnal Penelitian Hasil Hutan Jurnal Penelitian Kehutanan Sumatrana JOIV : International Journal on Informatics Visualization BioEksakta : Jurnal Ilmiah Biologi Unsoed Indonesian Journal of Forestry Research Indonesian Journal of Jamu
Maman Turjaman
Research, Development and Innovation Agency, Ministry of Environment and Forestry, Jl. Gunung Batu No. 5 Bogor, West Java, Indonesia 16610
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Environmental Science Health Professions Immunology & microbiology Medicine & Pharmacology Veterinary

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Root-induced Changes in the Rhizosphere of Extreme High Yield Tropical Rice: 1. Soil Chemical Properties Purnomo, Erry; Turjaman, Maman; Hairani, Anna; Mursyid, Athaillah; Choiron, Dodik; Yulia, Raina; Osaki, Mitsuru
JOURNAL OF TROPICAL SOILS Vol. 15 No. 2: May 2010
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2010.v15i2.95-102

Abstract

Root-induced Changes in the Rhizosphere of Extreme High Yield Tropical Rice: 1. Soil Chemical Properties     (E Purnomo,  M Turjaman, A Hairani, A Mursyid, D Choiron, R Yulia and M Osaki): Padi Panjang cultivar is one of many local rice cultivars found in South Kalimantan that yields 8 Mg ha-1 without fertilizer after last transplanting. The mechanisms involved in sustaining nutrient supply to sustain the extreme high yield are of interest. The following work aims to investigate the changes of soil chemical properties in rizhosphere of Padi Panjang cultivar. The Padi Panjang cultivar was grown in a rhizobox filled with soils from 3 different villages in Banjar Regency, South Kalimantan Province, namely, Kuin, Bunipah and Guntung Papuyu. The rice plant was grown for 5 weeks. At the end of the growing period, soil chemical properties such as pH, aluminum (Al), phosphorus (P), potassium (K+), ammonium (NH4+), and nitrate (NO3-) were measured. The results showed that Padi Panjang cultivar had the capability to change the soil chemical properties in the rhizophere. The impact was more extent compared with IR64 cultivar. The changes were depended on soil character, especially, soil texture. The soil from Guntung Papuyu was the least affected by root. It was observed that Padi Panjang cultivar acidified more than IR64. A depletion zone of K+ and NH4+ was found in the rhizosphere of both Padi Panjang and IR64 cultivars. The depletion zone of these ions could reach as far as 3 cm from the rhizosphere. For P, the depletion zone only occurred in the rhizosphere soil of IR64 cultivar. However, for Padi Panjang cultivar, the depletion zone of P did not exist. The Padi Panjang cultivar was able to maintain P concentration the same as or higher than control soil without plant. This is the first report showing that Padi Panjang cultivar can be considered as efficient lowland rice cultivar in absorbing not only P but also K in a P- and K-deficient-soil.
Characterization of Ethanol Extract from Agarwood (Aquilaria microcarpa Baill.) Leaf Rahmanto, Beny; Halwany, Wawan; Lestari, Fajar; Anwar, Khoerul; Triyasmono, Liling; Rizki, Muhammad Ikhwan; Turjaman, Maman
Jurnal Jamu Indonesia Vol. 3 No. 2 (2018): Jurnal Jamu Indonesia
Publisher : Tropical Biopharmaca Research Center, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jji.v3i2.56

Abstract

The aim of this research is to determine the specific and non-specific parameter from ethanolic extract of A. microcarpa. Specific parameters such as the organoleptic properties, content of water and ethanol soluble compound, and chhromatogram profile of the extract. In contrast, the non-specific parameter includes drying losses, ash levels, microbiological contamination levels, and heavy metal contamination levels. The results showed that the organoleptic properties of ethanolic extract of A. microcarpa was thick, blackish brown color, bitter taste and have distinctive odor. The average content of water-soluble compounds of 66.93%, ethanol-soluble of 47.97%, and chromatogram profile with Rf 0.636. The non-specific parameters results were drying losses of 5.50%, total ash content of 3.73%, acid-insoluble ash of 2.13%, microbial contamination testing results of 1.2x102-5.5x103 colonies/g, and total mold/ yeast contaminants of 10-100 colonies/g. Heavy metal contamination Pb levels and Cd levels were 5.47 mg/kg and 0.19 mg/kg respectively. These studies suggested that the observed specific and non-specific parameters may be helpful for establishing pharmacopoeia standards of A. microcarpa and to ensure uniformity of extract effect.
CHEMICAL AND ORGANOLEPTIC PROPERTIES OF BEKAI (Pycnarrhena tumefacta Miers) LEAVES FOR FLAVOURING AGENT (BIO-VETSIN) Maharani, Rizki; Fernandes, Andrian; Turjaman, Maman; Kuspradini, Harlinda; Lukmandaru, Ganis
Indonesian Journal of Forestry Research Vol. 7 No. 2 (2020): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2020.7.2.121-133

Abstract

The "tasty" cuisine tends to use chemical flavour agent containing monosodium glutamate (M.S.G.). M.S.G. utilizations, in long-term, may cause health problems, especially triggering cancer cells. Therefore necessary to introducing and increasing a natural flavouring agent to eliminate those health problem, such as bekai leaf. Bekai (Pycnarrhena tumefacta Miers) is familiar as a natural flavour agent (bio-vetsin) in cuisine for forest communities in Nyapa Indah Village, Berau, East Kalimantan, Indonesia. However, until now there has been no proper analysis support for widespread utilization of bekai leaf. This paper studies the presence of phytochemicals, antioxidant and GC MS analysis from bekai leaf extracts, as well as five hedonic classifications of organoleptic test, to reinforce the need for a better understanding of consumers reaction in terms of possible acceptance of additional bekai leaves applied in soup as bio-vetsin. Present study showed that the qualitative screening of phytochemical compounds in bekai leaves ethanolic extracts revealed presence of alkaloids, flavonoids, tannins and steroids. Antioxidants of bekai leaves using 2,2-diphenyl-1-picrylhydrazy (DPPH) method showed that concentrated extract has 80.1%, which predicted can improve immune for inhibitory action of cancer cells. GC MS analysis suspected that bekai leaf extract contained 5 (five) major compounds, i.e. oxirane dodecyl, gamma sitosterol, vitamin E (α tokoferol), 9.12-Octadecadienoic acid (Z,Z)- (natural linoleic acid), and 3-Tetradecanynoic acid (myristic acid). These chemical compound in related with their phytochemical were predicted to contained strong antioxidant activities and some of them commonly used as flavour agent in cuisine for some food industries.
Co-Authors A.W. Gunawan, A.W. Andrian Fernandes, Andrian Anna Hairani Asep Hidayat Athaillah Mursyid Choiron, Dodik Daniel Happy Putra Dian Rachma Wijayanti Djarwanto Djarwanto Eka Novriyanti Erdy Santosa Erdy Santoso Erry Purnomo Fajar Lestari Ganis Lukmandaru Heliza Rahmania Hatta, Heliza Rahmania Hendrik Segah, Hendrik Hideyuki Saito, Hideyuki Irman Hermadi Irnayuli R. Sitepu Irnayuli R. Sitepu, Irnayuli Keitaro Tawaraya Khoerul Anwar Kunihide Takahashi, Kunihide Liling Triyasmono Luciasih Agustini Masato Shibuya, Masato Mitsuru Osaki Muhammad Ikhwan Rizki Patricia Erosa Putir, Patricia Erosa Pratiwi Pratiwi Rahmanto, Beny Rizki Maharani Ronny Tambunan Satoshi Tahara SATRIYAS ILYAS Sehat Jaya Tuah, Sehat Jaya Sihati Suprapti Siti S. Miftahuliyah Sri Nurdiati Suwido Hester Limin, Suwido Hester Wasrin Syafii Wawan Halwany, Wawan Yahya Jamal, Yahya Yana Sumarna, Yana Yasuyuki Hashidoko Yulia, Raina Yutaka Tamai