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All Journal Jurnal Teknologi Dan Industri Pangan Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Jurnal Penelitian Pascapanen Pertanian Jurnal Teknologi Pertanian AGRIVITA, Journal of Agricultural Science Indonesian Journal of Biotechnology BERITA BIOLOGI Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology Home Economics Journal Jurnal Pariwisata Terapan Journal of Functional Food and Nutraceutical Jurnal Wana Tropika Jurnal Wana Tropika

Eni Harmayani

Fakultas Teknologi Pertanian, Universitas Gadjah Mada, Yogyakarta

Author-ID : 433980

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Economics, Econometrics & Finance Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Nursing Other

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RESPON IMUN MUKOSA DAN SELULER PADA TIKUS YANG DIBERI BUBUK SUSU KAMBING DENGAN INFEKSI Salmonella Typhimurium [Mucosal and Cellular Immune Response of Rat Given Goat Milk Powder and Infected with Salmonella Typhimurium] . Nurliyani; Madarina Julia; Eni Harmayani; Endang Baliarti
Jurnal Teknologi dan Industri Pangan Vol. 24 No. 1 (2013): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

ABSTRACT Goat milk contains bioactive proteins and oligosaccharides which can act as immunomodulators and prebiotics respectively. The objectives of this study were to determine the effect of giving goat milk powder on mucosal immune response (sIgA/secretory immunoglobulin A), cellular immune response (IFN-γ/interferon-γ) and the total number of lactobacilli in caecal digesta of infected rat by Salmonella Typhimurium. Male Sprague Dawley rats 3 weeks old were divided into two groups: 1) goat milk powder treatment, and 2) control. After 14 days given goat milk powder, the rats were infected with Salmonella Typhimurium and after 21 days were killed. The results showed that the average concentration of sIgA in group of rats given with goat milk powder was not significantly different with the control rat (42.95 ng/ml). The concentration of IFN-γ in rat given with goat milk powder was significantly different (63.33 pg/ml) from the control (45.00 pg/m) (p

Pemanfaatan Supernatan Kultur Pediococcus acidilactici F11 Penghasil Bakteriosin untuk Memperpanjang Masa Simpan Tahu Eni Harmayani; Endang S. Rahayu; Titiek F. Djaafar; Nuri Wahyuningsih; Tri Marwati
Jurnal Penelitian Pascapanen Pertanian Vol 6, No 2 (2009): Jurnal Penelitian Pascapanen Pertanian
Publisher : Balai Besar Penelitian dan Pengembangan Pascapanen Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jpasca.v6n2.2009.85-93

Tahu merupakan makanan yang mudah rusak akibat aktivitas bakteri pembusuk. Pediococcus acidilactici F11 potensial digunakan sebagai pengawet karena mampu memproduksi bakteriosin yang bersifat antibakteri. Penelitian bertujuan untuk mengetahui kemampuan supernatan kultur P. acidilactici F11 (PaF11) dalam menghambat bakteri dan coliform pada tahu sebagai upaya memperpanjang umur simpan tahu. Variasi perlakuan yang dicobakan yaitu : pasteurisasi dengan supernatan kultur PaF11 pada suhu 95oC selama 5 menit (PDS), perendaman dengan supernatan kultur PaF11 pada suhu 4oC selama semalam (RSS) dan perendaman dengan supernatan kultur PaF11 pada suhu kamar selama 15 menit (RSL). Sebagai kontrol dilakukakn perlakuan pasteurisasi dengan air pada 95oC selama 5 menit (KON), dan perendaman dengan NisaplinR (200 mg/l) pada suhu kamar selama 15 menit (RNL). Supernatan kultur PaF11 diperoleh dengan cara sentrifugasi kultur PaF11 yang ditumbuhkan dalam limbah cair tahu dengan penambahan 1% sukrosa dan diinkubasi 37oC selama 18-24 jam. Total bakteri dan coliform pada tahu dianalisis pada penyimpanan hari ke 0,3 dan 7 dan uji organoleptik dilakukan pada hari ke 7. Hasil penelitian menunjukkan bahwa pasteurisasi dengan supernatan kultur PaF11 pada suhu 95oC selama 5 menit (PDS) dapat menekan bakteri tahu sebesar 2 log cycle dan coliform 475 APM/g dan perendaman dengan supernatan kultur PaF11 pada suhu 4oC selama semalam (RSS) dapat menekan bakteri sekitar 2 log cycle dan coliform sebesar 550 APM/g. Pasteurisasi dengan air pada 95oC selama 5 menit (KON), total bakteri dan coliform dalam tahu terus mengalami peningkatan selama penyimpanan. Baik perendaman dengan supernatan kultur PaF11 pada suhu kamar selama 15 menit (RSL) maupun perendaman dengan NisaplinR (200 mg/l) pada suhu kamar selama 15 menit (RNL) tidak mampu menekan bakteri maupun coliform tahu. Penggunaan supernatan kultur PaF dengan cara pasteurisasi pada suhu 95oC selama 5 menit (PDS) dan perendaman pada suhu 4oC selama semalam (RSS) dapat memperpanjang masa simpan tahu sampai 7 hari, dan meningkatkan tingkat penerimaan panelis. Utilization Of The Culture Supernatant Of P. Acidilactici F11 As A Bacteriocin Producer To Extend Shelf-Life Of Tofu. Tofu is a nutricious food and prone to spoilage by bacterial activity. pediococcus acidilacticii F11 can be used as food preservatives because of their ability to produce bacteriocin as an antibacterial metabolite. The purpose of this research was to determine the ability of the culture P acidilactici F11 (Pa F11) supernatant to inhibit bacteria and coliform and to extend shelf-life of tofu. Treatments done were: pasteurization using PaFl1 culture supernatant at 95°C for 5 min (POS), soaking using PaF11 culture supernatant at room temperature for 15 min (RSL), and soaking using PaF11 culture supernatant at 4°C overnight (RSS). Pasteurization tofu in water at 95°C for 5 min (KON) and soaking tofu in Nisaplin" (200 mg/L) at 4°C for IS min (RNL) were used as control. Culture supernatant of Pa F11 was obtained by centrifuging the culture of Pa F11 which was grown for 18-24 h at 37 'C in tofu liquid waste with addition of 1% sucrose. Total bacteria and coliform on tofu were analyzed at 0, 3, 7 days and sensory test were conducted at 7 days of storage. Result showed that pasteurized tofu in PaF11 supernatant at 95°C for 5 min (PDS) had low bacteria and coli/arm counts (2 log cycle and 475 APM/g respectively) during storage. Tofu soaked in Pa F11 supernatant at 4°C overnight (RSS) had lower both bacteria and coliform counts compared to control (2 log cycle and 550 APM/g, respectively) during storage. Data indicated that both bacteria and coliform counts of pasteurized tofu in water at 95°C for 5 min (KON) increased during storage. Addition of 200 mg/l Nisaplin" at 4°C for 15 min (RNL) or supernatant soaked at room temperature for 15 min (RSL) did not inhibit both bacteria and coliform on tofu during storage. Utilization of PaF 11 supernatant for pasteurization at 95 'C for 5 min (PDS) and soaking at 4°C overnight (RSS) prolonged the shelf-life of tofu up to 7 days and increased the acceptance level of panelis.

Teknik Produksi Dan Purifikasi Pediosin Paf-11 Dari Pediococcus Acidilactici F-11 Tri Marwati; Nur Richana; Eni Harmayani; Endang S Rahayu
Jurnal Penelitian Pascapanen Pertanian Vol 9, No 1 (2012): Jurnal Penelitian Pascapanen Pertanian
Publisher : Balai Besar Penelitian dan Pengembangan Pascapanen Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jpasca.v9n1.2012.11-17

Pediosin PaF-11 dari Pediococcus acidilactici F-11 berpotensi sebagai pengawet pangan karena kemampuannya dalam mengendalikan pertumbuhan bakteri pembusuk pangan. Efektivitas purifikasi diperlukan dalam aplikasi pediosin PaF-11 pada industri pangan. Untuk itu dilakukan penelitian yang bertujuan untuk mengetahui aktivitas pediosin PaF-11 selama proses inkubasi sel P. acidilactici F-11 dan meningkatkan efektivitas purifikasi pediosin PaF-11. Perlakuan yang dicobakan pada proses purifikasi yaitu adsorpsi dan desorpsi pada pH yang bervariasi dan penambahan biomassa sel mati dari P. acidilactici F-11 pada konsentrasi yang bervariasi selama proses adsorpsi. Aktivitas antibakteri pediosin PaF-11 diuji dengan metode difusi agar menggunakan bakteri indikator Lactobacillus pentosus LB42. Hasil penelitian menunjukkan bahwa pediosin PaF-11 yang diproduksi dengan menggunakan kultur awal P. acidilactici F-11 sebanyak 10% dengan lama inkubasi 16 jam mempunyai aktivitas 2000 AU/ml. Pediosin PaF-11 yang dihasilkan P. acidilactici F-11 dengan kultur awal 1% dan purifikasi pada pH adsorpsi pH 6,5 dan pH desorpsi 2,0 memiliki aktivitas tertinggi yaitu 1500AU/ml, dibandingkan perlakuan pH yang lain. Aktivitas pediosin PaF-11 yang dihasilkan dari proses purifikasi tanpa penambahan biomassa sel mati yaitu 1500AU/ml, sedangkan dengan penambahan biomassa sel mati 3, 6 dan 11 kali dari konsentrasi awal menjadi 3000AU/ml. Hal ini berarti bahwa dengan penambahan biomassa sel mati P. acidilactici F-11 dengan 3 kali konsentrasi awal mampu meningkatkan pediosin PaF-11 yang diperoleh.

Production and Extraction Of Antibacterial Bacteriocin from Pediococcus sp. NWD 015 N. Nofisulastri; Zaenal Bachruddin; Eni Harmayani
Indonesian Journal of Biotechnology Vol 11, No 2 (2006)
Publisher : Universitas Gadjah Mada

objectives were to study the growth pattern of Pediococcus sp. NWD 015 and bacteriocin activity, extractionand characterization of bacteriocin, and to determine the effect of storage time and temperature on bacteriocinactivity. Results showed that the bacteriocin activity increased during growth and reached the highest activity duringstationary phase. The maximum bacteriocin production reached after incubation of the cell for 12 h at 37oC in TGEbroth and decreased after 96 h incubation. Extraction with adsorbtion-desorbtion method could increased a specificactivity of bacteriocin. Bacteriocin from Pediococcus sp. NWD 015 is inactivated by Proteinase-K; however it is stillactive by heat treatment at 121oC for 15 min and over pH 2 – 11. Bacteriocin of Pediococcus sp. NWD 015 was effectiveagaints Enterococcus faecalis, Staphylococcus aureus, Eschericia coli, Listeria monocytogenes but not against Salmonellathypimurium. The molecular weight of bacteriocin is 4.95 kDa.Keywords : Bacteriocins, Pediococcus sp NWD 015.

Penurunan Glukosa dan Perubahan Profil Lipida Serum Tikus Sprague- Dawley Hiperglikemia-Hiperkolesterolemia Akibat Asupan Sorbitol-Oleat Poliester (SOPE) Agnes Murdiati; Hastari Wuryastuty; Y. Marsono; Eni Harmayani
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 14, No 3 (2009): October 2009
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v14i3.2576

Disorder of carbohydrate metabolism in the Diabetes Mellitus patients resulted in increasing of cholesterol synthesis. This condition increases the risk of heart attack or coronary heart disease, therefore it is recommended to lower fat intake. One of the alternatif to lower fat intake is by replacing fat with fat replacer in the diet. The aim of the present study is to evaluate the effect of replacing 75% of fat with SOPE on the glucose and lipid profile in diabetic-hipercholesterolemic rats. Eihgteen Sprague Dawley rats were devided into 2 groups of 9 rats. They were fed with hipercholesterol diet and were diabetic induced with alloxan IM injection. One group was fed with 75% SOPE substitute the fat in the standard diet and the other group was fed with standard diet. The result indicates that the oil substitution of standard diet of Sprague Dawley rats for sorbitol-oleic polyester as much as 75% gives an advantage to rats which suffer hiperglikemic-hypercholesterolemic because it decreased the glucose, total cholesterol, LDL cholesterol, and LDL/HDL cholesterol ratio, and did not decrease the HDL cholesterol, but increased triglyceride serum.

Mekanisme Awal dan Aplikasi Antibakteri Pediosin PaF-11 Sebagai Pengawet Tahu Tri Marwati; Nur Richana; Irinne D.P; Eni Harmayani; Endang S Rahayu
Jurnal Penelitian Pascapanen Pertanian Vol 9, No 2 (2012): Jurnal Penelitian Pascapanen Pertanian
Publisher : Balai Besar Penelitian dan Pengembangan Pascapanen Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jpasca.v9n2.2012.54-62

Pediosin PaF-11 dari Pediococcus acidilactici F-11 merupakan peptida antibakteri yang aktif pada kisaran pH luas dan stabil pada perlakuan suhu tinggi dan rendah sehingga potensial digunakan sebagai pengawet tahu. Penelitian ditujukan untuk mengetahui mekanisme awal penghambatan pediosin PaF-11 sebagai antibakteri dan aplikasinya sebagai pengawet tahu. P. acidilactici F-11 dan Lactobacillus pentosus LB42 berturut turut digunakan sebagai bakteri penghasil dan indikator uji aktivitas pediosin PaF-11. Mekanisme awal kerja penghambatan pediosin PaF-11 ditentukan berdasar kajian pengaruh gadolinium (Gd3+) terhadap aktivitas pediosin PaF-11, kadar Gd3+ pada dinding sel dan morfologi sel indikator. Uji aktivitas pediosin PaF-11 dilakukan dengan metode difusi agar sumur. Aplikasi pediosin PaF-11 dan bakteriosin komersial nisin dilakukan terhadap tahu produksi CV. Kitagama Yogyakarta. Perlakuan meliputi perendaman tahu dalam larutan nisin (500 IU/g, 1000 IU/g dan 2000 IU/g) dan larutan pediosin PaF-11 30 AU/g. Setelah perendaman, dilanjutkan dengan pasteurisasi pada suhu 90oC selama 10 menit dan penyimpanan pada suhu 4oC selama 16 hari. Tahu tanpa perendaman dalam larutan nisin dan pediosin PaF-11 digunakan sebagai kontrol. Hasil penelitian mengindikasikan bahwa mekanisme awal penghambatan pediosin PaF-11 sebagai antibakteri yaitu melalui interaksi pediosin PaF-11 yang bermuatan positif dengan asam teikoat dan asam lipoteikoat yang bermuatan negatif. Hasil penelitian menunjukkan bahwa total bakteri awal pada tahu kontrol adalah 105 dan mengalami kenaikan menjadi 108 setelah disimpan. Penambahan larutan nisin dengan konsentrasi minimal 500 IU/g mampu menghambat populasi bakteri pada tahu sebesar 2 log cycle sedangkan larutan pediosin PaF-11(30 AU/g) mampu menghambat populasi bakteri pada tahu sebesar 0,5 log cycle.

Pemanfaatan Kultur Pediococcus Acidilactici F-11 Penghasil Bakteriosin sebagai Penggumpal pada Pembuatan Tahu Eni Harmayani; Endang S. Rahayu; Titiek F. Djaafar; Citra Argaka Sari; Tri Marwati
Jurnal Penelitian Pascapanen Pertanian Vol 6, No 1 (2009): Jurnal Penelitian Pascapanen Pertanian
Publisher : Balai Besar Penelitian dan Pengembangan Pascapanen Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jpasca.v6n1.2009.10-20

Tahu merupakan hasil penggumpalan protein kedelai oleh whey yang terfermentasi spontan (kecutan). Permasalahan yang dihadapi pengrajin tahu yaitu munculnya flavor asam pada tahu yang dihasilkan dari penggumpal tipe asam, sehingga perlu alternatif bahan penggumpal. Penelitian ini bertujuan untuk (i) mengetahui pertumbuhan P. acidilactici F-11 dan produksi bakteriosin dalam whey tahu, (ii) mempelajari pemanfaatan kultur P. acidilactici F-11 sebagai penggumpal pada pembuatan tahu dan (iii) mengetahui kualitas mikrobiologis dan organoleptik tahu selama penyimpanan pada suhu 4oC. Penelitian terdiri dari 3 tahap. Pertama, pertumbuhan P. acidilactici F-11 dan produksi bakteriosin. Kedua, pemanfaatan kultur sebagai penggumpal tahu. Ketiga, uji kualitas mikrobiologi (total bakteri) dan organoleptik (tekstur, pH, warna, flavor, dan kenampakan) tahu selama penyimpanan. Hasil penelitian menunjukkan bahwa P. acidilactici F-11 tumbuh lebih baik dalam whey dengan penambahan 1% sukrosa, pada suhu 37oC, namun tidak sebaik dalam media TGE cair. Aktivitas bakteriosin dapat dideteksi dengan adanya zona jernih yang jelas pada media TGE agar dan perpanjangan fase lag bakteri indikator, P. acidilactici LB-42. Total bakteri awal pada tahu antara 3,9.105 - 9,1.105 CFU/g. Selama penyimpanan, total bakteri pada tahu kontrol meningkat sebesar 2 log cycle, sedangkan tahu dengan kultur P. acidilactici F-11 hasil fermentasi suhu 37oC dan suhu kamar meningkat sebesar 1,5 dan 1 log cycle. Tahu yang dihasilkan dari kultur P. acidilactici F-11 sebagai penggumpal memiliki tekstur lebih lunak dan kompak serta flavor tidak asam dibanding tahu kontrol.Tahu dengan kultur P. acidilactici F-11 hasil fermentasi pada suhu kamar memiliki kualitas organoleptik sama dengan tahu dengan kultur P. acidilactici F-11 hasil fermentasi pada suhu 37oC. Utilization of bacteriocin producer culture Pediococcus acidilactici F11 as coagulant in tofu processingTofu is a food product made from soy protein coagulated with spontaneously fermented whey. One of problem in tofu processing is the presence of acid flavor of tofu due to the use of acid coagulant type the coagulant alternative become urgently required. The purposes of this research were (i) to study the growth and bacteriocin production of P acidilactici F-11 in tofu whey, (ii) to study the utilization of P. acidilactici F-11 culture as coagulant in tofu production, and (iii) to investigate microbiological and sensory quality of tofu coagulated with the culture during storage at 4°C. The reseach was conducted in three steps including: production of bacteriocin from P acidilactici F11, utilization of P. acidilactici F-11 culture as coagulant on tofu production, and total bacteria and sensory analysis of tofu during storage. The result showed that the growth of P. acidilactici F-11 in whey with addition 1 % sucrose at 37°C was better than that without sucrose but not as good as the growth in TGE broth. Bacteriocin activity was detected by appearance of clear zone on TGE agar and prolonged lag phase of indicator bacteria, P. acidilactici LB-42. The initial bacterial count on tofu was 3.9xI0' - 9.1xlO'CFU/g. During storage, bacterial count of control increased by 2 log cycle, whereas tofu coagulated with P. acldilactici F-11 culture at 3rC and room temperature increased by 1.5 and 1 log cycle, respectively. Tofu coagulated with P. acidilactici F-11 culture had smoother and more compact texture and less sour than control. The sensory quality of tofu coagulated with P. acidilactici F-11 culture at room temperature was similar to tofu coagulated with P. acidilactici F-11 culture a t 37°C.

Variability in Morpho-physiology, Tuber Yield and Starch Content of Several Arrowroot Populations in Garut District Asep Rohandi; Budiadi Budiadi; Suryo Hardiwinoto; Eni Harmayani; Dede J. Sudrajat
AGRIVITA, Journal of Agricultural Science Vol 39, No 3 (2017): OCTOBER
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v39i3.1002

Arrowroot (Maranta arundinacea L.) is an important starchy plant which has potential utilization for food,industry and medicine. The study was undertaken to assess the variability in morpho-physiological characters, tuber yield and starch content of 23 arrowroot populations in Garut District, West Java. The result showed some significant differences in morpho-physiological characteristics, tuber yield and starch content. Growth characteristics revealed that Cilawu population recorded the highest values for some characters: high, leaf number, above growth biomass and tuber biomass. Cikajang population showed the highest tuber yield (210.6 g per plant) followed by Cilawu population (134 g per plant). Cikajang and Cilawu populations also provided the highest tuber biomass, 46.6 g and 60.0 g respectively. Cilawu population was a second population producing the highest starch content (26.1 %) after Cibatu population (27 %). The higher heritability coupled with genetic advance revealed for fresh tuber yield indicated that selection on basis of the character may be helpful to improve arrowroot yield. Most of the growth characteristics had not significant correlation indicating that the characteristics are not good indicator for selection. Cilawu, Cikajang and Cibatu populations have good potential to produce the high quality and quantity of tuber for arrowroot cultivation in Garut District.

SCREENING OF THERMOSTABLE PROTEASE PRODUCING MICROORGANISMS ISOLATED FROM INDONESIAN HOTSPRING Dewi Seswita Zilda; Eni Harmayani; Jaka Widada; Widya Asmara; Hari Eko Irianto; Gintung Patantis; Yusro Nuri Fawzya
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 7, No 3 (2012): December 2012
Publisher : Research and Development Center for Marine and Fisheries Product Processing and Biotechnol

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.v7i3.5

Although many proteases had been studied and characterized, only a few of them are commercially available. Protease thermostability is one of the crucial properties for industrialapplication. This research aimed to isolate and to screen the potential isolate which produce thermostable protease. There were 6 isolates (BII-1, BII-2, BII-3, BII-4, BII-6 and LII), isolated using solid Minimal Synthetic Medium (MSM) supplemented with 1.5% skim milk, that have, protease activity. Based on the 16S-rRNA gene sequencing analysis, isolates BII-1, BII-2 and BII- 6 were identified as Bacillus licheniformis, isolates BII-3 and BII-4 were identified as Bacillus subtilis, while isolate LII was identified as Brevibacillus thermoruber. Three isolates (BII-6, BII-4 and LII) were then further investigated for the second screening step using liquid MSM supplemented with 1% skim milk. The isolates (BII-6, BII-4 and LII) optimally produced protease when they were cultivated at 35, 30 and 50o C respectively after 22 h of incubation. Protease produced by BII-6, BII-4 and LII had optimum temperature of 65, 60 and 85o C, optimum pH at 7-8, 8 and 9 and stable up to 100 min at 55, 60 and 75o C respectively.

KARAKTERISTIK AGROEKOLOGI DAN POTENSI TANAMAN GARUT PADA BERBAGAI VARIASI KETINGGIAN DI KABUPATEN GARUT, JAWA BARAT Rohandi, Asep; Budiadi; Hardiwinoto, Suryo; Harmayani, Eni
Jurnal Wana Tropika Vol 6 No 1 (2016)
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Arrowroot (Maranta arundinacea L.) is a multipurpose plant that can grow under the stands so that the species has the potential to develop in the pattern of agroforestry. Initial information of arrowroot plant population as a source of germplasm for plant material/superior varieties and their agroecological characteristics in the field is indispensable. The study aims to determine the distribution, agroecological characteristics and potency of arrowroot in Garut regency. The methods include: (1) the study of literature and direct communication with stakeholders and the public, (2) field survey to collect data on distribution, cultivation status, abundance and productivity of arrowroot plant using a single plot, and (3) data collection of arrowroot agroecological characteristics include: vegetation analysis and geoklimat factors. The research results indicate that the arrowroot populations distribute in groups with a fairly broad ecological range i.e. altitude 6-1351 masl, temperature 20-36o C, relative humidity RH 40-72%, light intensity 12-56% dan pH 4.16-7,40 (acid to neutral) and in the low to high soil fertility condition. Falcataria moluccana as the major private forest species dominates in all zones of altitude, especially on the stage of the tree. Arrowroot abundance by elevation zones is 63,750 plants/ha (lowlands), 43,864 plants/ha (plains) and 73.333 plants/ha (plateau). The potential production for all elevations ranged from 15.40 to 163.2 g/plants. Cikajang and Cilawu populations have good potential to produce the high yield of tuber for arrowroot cultivation in Garut District. Keywords : Maranta arundinacea, Agroecological characteristics, Elevation, Potency, Garut District

Co-Authors Aâ€™yun, Rizka Qurrota Agnes Murdiati Aryanti, Ni Nyoman Sri Asep Rohandi Asep Rohandi Budiadi Citra Argaka Sari Dede J. Sudrajat Dewi Seswita Zilda Dyah Mutiarin, Dyah Emy Huriyati Endang Baliarti Endang S Rahayu Endang S. Rahayu Evaristus Budiadi Gintung Patantis Gintung Patantis Hari Eko Irianto Hastari Wuryastuty Hastari Wuryastuty Ika Dyah Kusumawati, Ika Dyah Irinne D.P Ishida, Momoko JAKA WIDADA Lily Arsanti Lestari Madarina Julia Minta Harsana Muhammad Baiquni Mulyani, Rizka N. Nofisulastri Nishi, Kosuke Nofisulastri N, Nofisulastri Nur Richana Nuri Wahyuningsih Nurliyani Nurliyani Rosiana, Nita Maria Saputri, Rissa Soesatyo, Marsetyawan Heparis Nur Ekandaru Sri Hartati Sri Rahayoe Sugahara, Takuya Sulistyo, Okta Haksaica Suryo Hardiwinoto Suryo Hardiwinoto Susi Iravati Titiek F. Djaafar Tri Marwati Tri Marwati Tyas Utami Wening Udasmoro Widya Asmara Widyaningsih, Yulia Arisnani Y. Marsono Y. Marsono Yoyok B Pramono Yudi Pranoto Yusmiati Yusmiati, Yusmiati Yusro Nuri Fawzya Yusro Nuri Fawzya Zaenal Bachruddin Zilda, Dewi Zeswita

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