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Journal : ANNALES BOGORIENSES

Present Status and Challenges on Agricultural Microbe Bio-Prospecting in Indonesia Sukara, Endang
ANNALES BOGORIENSES Vol 11, No 1 (2007): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.1234/21

Abstract

food security is  one of the essential needs which can never be  ignored by any society,  including in particular Indonesia. as the world population is expected to rise to around  10 billion marked by 2025. The problem  is that the agriculture in developed and developing countries that  follow the path of developed countries experiences create · a  range of  serious environmental degradation. An  intensive agricultural production through the use of pesticide and herbicides, forest clearing and continued use of land resources  for the agricultural purposes are not sustainable practice  .  In  consequences,  degradation  of ecosystem,  oil  erosion.  and  low  productivity  of land,  poor water quality and lost of biological  diversity  (including microbial  and  genetic  resources) occurred  at alarming  stale. Meanwhile,  the efforts  in  addressing  the above  situation  is  traditionally  focused on plant phenotypes (breeding. plant genetic engineering etc .) but the important role of microbial communities that interact with plants to influence plant health and productivity has been  largely ignored. The  interaction of microbes with plants and  its  relevant to soil  fertility and productivity, the bio-control properties of microbes and challenges toward sustainable agriculture is highlighted.
Cellulolytic Yeast Isolated From Raja Ampat Indonesia Kanti, Atit; Sukarno, Nampiah; Sukara, Endang; Darusman, Latifah K
ANNALES BOGORIENSES Vol 16, No 1 (2012): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (600.042 KB) | DOI: 10.1234/46

Abstract

The objective of this study was to select and characterize three yeast isolates originating from soil of  Raja Ampat region of Papua, Indonesia for its potential to produce cellulase . Selection and characterization of cellulolytic yeast was carried out by measuring cellulolytic Index (IS) with congo red method and measurement of Carboxy Methyl Cellulase (CMC-ase) activity through determination of reducing sugar with dinitrosalycilic methods. Cellulolytic Index (IS) of the isolates  Sporobolomyces poonsookiae Y08RA07,  Rhodosporidium paludigenum Y08RA29 and Cryptococcus flavescens Y08RA33were 1.40, 2.60 and 1.66 respectively. CMC-ase produced optimum at pH 8 at 37ºC by isolate Y08RA07, whereas for Y08RA29 andY08RA33 were at pH 6, at 28ºC. Paper waste was good substrate for cellulase enzyme production by isolate Y08RA07, while for two other isolates the best substrate was CMC. Isolate Y08RA29 having highest cellulase activities when grown in CMC, while isolates Y08RA07 and Y08RA33 achieved highest enzyme activity when grown in bamboo leaf.   Key words: Cellulolytic yeast, Raja Ampat, waste paper, bamboo leaf
Medium Optimization for Antimicrobial Production By Newly Screened Lactic Acid Bacteria Rohmatussolihat, Rohmatussolihat; Lisdiyanti, Puspita; Yopi, Yopi; Widyastuti, Yantyati; Sukara, Endang
ANNALES BOGORIENSES Vol 22, No 1 (2018): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/ab.v22i1.322

Abstract

Lactic acid bacteria (LAB) are important for prevention of spoilage and pathogenic bacterial growth in foods due to their ability to generate antimicrobial substances. The objective of this study was to screen LAB for antimicrobial activity and to optimize culture medium for antimicrobial production using Response Surface Methodology (RSM) with Central Composite Design (CCD). Optimization of antimicrobial production of selected LAB was conducted with different combinations of glucose, NaCl, inoculum, and temperature. Our experimental results showed that from 129 LAB isolates, 55 showed significant inhibition against Bacillus subtilis, Escherichia coli, Micrococcus luteus, Staphylococcus aureus, Aspergillus niger, and Candida albicans. No isolates inhibited the growth of Aspergillus flavus. Lactobacillus plantarum LIPI13-2-LAB011 was selected for further study on culture medium optimization to inhibit the growth of C. albicans. From statistical analysis, the production of antimicrobial substances was significantly influenced by temperature, NaCl, and concentration of glucose. Furthermore, the optimum concentrations of glucose, concentration of inoculum, temperature, and NaCl were 1.63 %, 3.03%, 33.74°C, and 3.4%, respectively, with a maximum predicted inhibition index of 1.916, which increased 3.56-fold compared to that obtained in medium before optimization processes. The result was confirmed as when the optimum concentration of nutritions used, the inhibition index increased 3.12-fold.
Isolation of Endophytic Microbes from Gunung Halimun National Park, West Java, Indonesia and Bioassay Their Potency for Eradicating Microbial Crops Pathogen Sukara, Endang; Melliawati, Ruth
ANNALES BOGORIENSES Vol 17, No 1 (2013): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.1234/73

Abstract

Gunung Halimun National Park (GHNP) – West Java, Indonesia is the largest preserved primary forest in West Java. Diversity of plants and animals of this park have been studied intensively during the 15 years years. Diversity of endophytic microorganisms, however, has never been reported. Endophytic microbes are those who reside in the interspatial tissues of plants, have a capacity to produce array of secondary metabolites. This paper illustrates the occurrence of endophyte microbes in diverse flowering plants of GHNP. Total of 160 bacteria and 337 fungus were isolated from 86 plants species in the area. Out of that, 159 bacterial isolates and 320 fungus isolates survived in our collection and tested against four major microbial crops pathogen namely Xanthomonas campestris, Pseudomonas solanacearum, Colletotrichum glocosporoides and Fusarium oxysporum cubense. Plate Agar Test Assay method reveals that 51 among 159 bacterial isolates and 62 among 320 endophytic fungal isolates have an ability to inhibit the growth of microbial crop pathogens. Endophytic bacteria can inhibit more microbial crops pathogen but the inhibition ability is less compare to that of endophytic fungi. From our preliminary study clearly shows that endophytic microbes of GHNP should have potential value in developing biological control agent to combat microbial crop pathogens and eventually reduce the use of synthetic chemicals.
Rapid Assessment of Diverse Trichodermal Isolates of Indonesian Origin for Cellulase Production Fahrurrozi, Fahrurrozi; Ratnakomala, Shanti; Anindyawati, Trisanti; Lisdayanti, Puspita; Sukara, Endang
ANNALES BOGORIENSES Vol 14, No 1 (2010): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.1234/36

Abstract

Trichoderma is a well -known candidate to be promoted as cellulase producer  for the hidrolysis of lignocelluloses that contain  in  woody  biomass. The  number of trichodermal  isolates  in our  laboratory collected  from diverse ecosystem types in Indonesia increases significantly during the last 5 years. It is our aim to assess the cultures for its ability in producing cellulase. Sixty-six trichodermal isolates used in this experiment are obtained from Biotechnology Culture Collection (BTCC), Research Center for Biotechnology, Indonesian Institute of Sciences(LIPI)  The 31 isolates were isolated from District of Liwa (South Sumatra, Indonesia) and the 35 isolates from District of Maros (South Sulawesi, Indonesia). The  isolates were screened qualitatively,  7  isolates  from  Liwa and 12  isolates from Maros showed cellulolytic activity. From the results of quantitative test, two strains  (ID08-T004 and ID08-T63) showed the higher cellulolytic activity among the selected strains, 133.5 and 133.5 U/ml, respectively.  These  extracellular  enzymes  were  characterized  their  temperature  and  pH  optimum.  The temperature  optimum  for  both  enzymes  was  the  same,  50C,  with  activity  213.6  U/ml  for  enzyme  extracted from ID08-T004 and 197.3 U/ml for enzyme from ID08-T0063. The pH optimum was pH 5 of ID08-T004 with activity137.7 U/ml and pH 6 for ID08-T063 with activity 75.0 U/ml. The enzymes from ID08-T004 and ID08-T063 were stable in their temperature and pH optimal condition even after 90 minutes incubation with activity 179.0 U/ml and 86.7 U/ml, respectively. The enzyme stability was approximately 150 minutes for both enzymes in the temperature and pH optimum.   Key Words: Trichoderma, cellulase, Culture Collection
Rapid Assessment of Diverse Trichodermal Isolates of Indonesian Origin for Cellulase Production Fahrurrozi Fahrurrozi; Shanti Ratnakomala; Trisanti Anindyawati; Puspita Lisdayanti; Endang Sukara
ANNALES BOGORIENSES Vol 14, No 1 (2010): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (649.7 KB) | DOI: 10.14203/ann.bogor.2010.v14.n1.39-46

Abstract

Trichoderma is a well -known candidate to be promoted as cellulase producer  for the hidrolysis of lignocelluloses that contain  in  woody  biomass. The  number of trichodermal  isolates  in our  laboratory collected  from diverse ecosystem types in Indonesia increases significantly during the last 5 years. It is our aim to assess the cultures for its ability in producing cellulase. Sixty-six trichodermal isolates used in this experiment are obtained from Biotechnology Culture Collection (BTCC), Research Center for Biotechnology, Indonesian Institute of Sciences(LIPI)  The 31 isolates were isolated from District of Liwa (South Sumatra, Indonesia) and the 35 isolates from District of Maros (South Sulawesi, Indonesia). The  isolates were screened qualitatively,  7  isolates  from  Liwa and 12  isolates from Maros showed cellulolytic activity. From the results of quantitative test, two strains  (ID08-T004 and ID08-T63) showed the higher cellulolytic activity among the selected strains, 133.5 and 133.5 U/ml, respectively.  These  extracellular  enzymes  were  characterized  their  temperature  and  pH  optimum.  The temperature  optimum  for  both  enzymes  was  the  same,  50C,  with  activity  213.6  U/ml  for  enzyme  extracted from ID08-T004 and 197.3 U/ml for enzyme from ID08-T0063. The pH optimum was pH 5 of ID08-T004 with activity137.7 U/ml and pH 6 for ID08-T063 with activity 75.0 U/ml. The enzymes from ID08-T004 and ID08-T063 were stable in their temperature and pH optimal condition even after 90 minutes incubation with activity 179.0 U/ml and 86.7 U/ml, respectively. The enzyme stability was approximately 150 minutes for both enzymes in the temperature and pH optimum.   Key Words: Trichoderma, cellulase, Culture Collection
Isolation of Endophytic Microbes from Gunung Halimun National Park, West Java, Indonesia and Bioassay Their Potency for Eradicating Microbial Crops Pathogen Endang Sukara; Ruth Melliawati
ANNALES BOGORIENSES Vol 17, No 1 (2013): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15920.315 KB) | DOI: 10.14203/ann.bogor.2013.v17.n1.15-23

Abstract

Gunung Halimun National Park (GHNP) – West Java, Indonesia is the largest preserved primary forest in West Java. Diversity of plants and animals of this park have been studied intensively during the 15 years years. Diversity of endophytic microorganisms, however, has never been reported. Endophytic microbes are those who reside in the interspatial tissues of plants, have a capacity to produce array of secondary metabolites. This paper illustrates the occurrence of endophyte microbes in diverse flowering plants of GHNP. Total of 160 bacteria and 337 fungus were isolated from 86 plants species in the area. Out of that, 159 bacterial isolates and 320 fungus isolates survived in our collection and tested against four major microbial crops pathogen namely Xanthomonas campestris, Pseudomonas solanacearum, Colletotrichum glocosporoides and Fusarium oxysporum cubense. Plate Agar Test Assay method reveals that 51 among 159 bacterial isolates and 62 among 320 endophytic fungal isolates have an ability to inhibit the growth of microbial crop pathogens. Endophytic bacteria can inhibit more microbial crops pathogen but the inhibition ability is less compare to that of endophytic fungi. From our preliminary study clearly shows that endophytic microbes of GHNP should have potential value in developing biological control agent to combat microbial crop pathogens and eventually reduce the use of synthetic chemicals.
Present Status and Challenges on Agricultural Microbe Bio-Prospecting in Indonesia Endang Sukara
ANNALES BOGORIENSES Vol 11, No 1 (2007): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4484.648 KB) | DOI: 10.14203/ann.bogor.2007.v11.n1.31-39

Abstract

food security is  one of the essential needs which can never be  ignored by any society,  including in particular Indonesia. as the world population is expected to rise to around  10 billion marked by 2025. The problem  is that the agriculture in developed and developing countries that  follow the path of developed countries experiences create · a  range of  serious environmental degradation. An  intensive agricultural production through the use of pesticide and herbicides, forest clearing and continued use of land resources  for the agricultural purposes are not sustainable practice  .  In  consequences,  degradation  of ecosystem,  oil  erosion.  and  low  productivity  of land,  poor water quality and lost of biological  diversity  (including microbial  and  genetic  resources) occurred  at alarming  stale. Meanwhile,  the efforts  in  addressing  the above  situation  is  traditionally  focused on plant phenotypes (breeding. plant genetic engineering etc .) but the important role of microbial communities that interact with plants to influence plant health and productivity has been  largely ignored. The  interaction of microbes with plants and  its  relevant to soil  fertility and productivity, the bio-control properties of microbes and challenges toward sustainable agriculture is highlighted.
Cellulolytic Yeast Isolated From Raja Ampat Indonesia Atit Kanti; Nampiah Sukarno; Endang Sukara; Latifah K Darusman
ANNALES BOGORIENSES Vol 16, No 1 (2012): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (600.042 KB) | DOI: 10.14203/ann.bogor.2012.v16.n1.27-34

Abstract

The objective of this study was to select and characterize three yeast isolates originating from soil of  Raja Ampat region of Papua, Indonesia for its potential to produce cellulase . Selection and characterization of cellulolytic yeast was carried out by measuring cellulolytic Index (IS) with congo red method and measurement of Carboxy Methyl Cellulase (CMC-ase) activity through determination of reducing sugar with dinitrosalycilic methods. Cellulolytic Index (IS) of the isolates  Sporobolomyces poonsookiae Y08RA07,  Rhodosporidium paludigenum Y08RA29 and Cryptococcus flavescens Y08RA33were 1.40, 2.60 and 1.66 respectively. CMC-ase produced optimum at pH 8 at 37ºC by isolate Y08RA07, whereas for Y08RA29 andY08RA33 were at pH 6, at 28ºC. Paper waste was good substrate for cellulase enzyme production by isolate Y08RA07, while for two other isolates the best substrate was CMC. Isolate Y08RA29 having highest cellulase activities when grown in CMC, while isolates Y08RA07 and Y08RA33 achieved highest enzyme activity when grown in bamboo leaf.   Key words: Cellulolytic yeast, Raja Ampat, waste paper, bamboo leaf
Medium Optimization for Antimicrobial Production By Newly Screened Lactic Acid Bacteria Rohmatussolihat Rohmatussolihat; Puspita Lisdiyanti; Yopi Yopi; Yantyati Widyastuti; Endang Sukara
ANNALES BOGORIENSES Vol 22, No 1 (2018): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (641.843 KB) | DOI: 10.14203/ann.bogor.2018.v22.n1.1-11

Abstract

Lactic acid bacteria (LAB) are important for prevention of spoilage and pathogenic bacterial growth in foods due to their ability to generate antimicrobial substances. The objective of this study was to screen LAB for antimicrobial activity and to optimize culture medium for antimicrobial production using Response Surface Methodology (RSM) with Central Composite Design (CCD). Optimization of antimicrobial production of selected LAB was conducted with different combinations of glucose, NaCl, inoculum, and temperature. Our experimental results showed that from 129 LAB isolates, 55 showed significant inhibition against Bacillus subtilis, Escherichia coli, Micrococcus luteus, Staphylococcus aureus, Aspergillus niger, and Candida albicans. No isolates inhibited the growth of Aspergillus flavus. Lactobacillus plantarum LIPI13-2-LAB011 was selected for further study on culture medium optimization to inhibit the growth of C. albicans. From statistical analysis, the production of antimicrobial substances was significantly influenced by temperature, NaCl, and concentration of glucose. Furthermore, the optimum concentrations of glucose, concentration of inoculum, temperature, and NaCl were 1.63 %, 3.03%, 33.74°C, and 3.4%, respectively, with a maximum predicted inhibition index of 1.916, which increased 3.56-fold compared to that obtained in medium before optimization processes. The result was confirmed as when the optimum concentration of nutritions used, the inhibition index increased 3.12-fold.