ORCID Profile
0000-0001-5013-1736
Current Organisation
Badan Riset dan Inovasi Nasional Republik Indonesia
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Publisher: IOP Publishing
Date: 04-2021
DOI: 10.1088/1755-1315/733/1/012081
Abstract: This research was to extend the shelf-life of fresh Atlantic salmon fillets when packaged in bulk food service modified atmosphere packaging trays with low gas to product volume ratios. When head-on-gutted Atlantic salmon were washed in Neutral electrolyzed water sanitizer prior to filleting, the microbial load on the skin of HOGs treated at 20 ppm and 100 ppm chlorine equivalents decreased by 3.5 log CFU/cm 2 down to 2.0 and 1.5 log CFU/cm 2 , respectively. Further trials washed the HOGs with 100 ppm of NEW before filleting. They were then packed in a different product gas to product (G/P) volume ratios (0.4:1, 1:1 and 2:1) and stored at 0°C or 4°C up to 20 days. The combinations of sanitation pre-processing and high G/P ratio were most effective for controlling the microbial count to 4.5 log CFU/g when stored at 0°C compared to a microbial count of 7.2 log CFU/g for the unwashed fillets after 20 days under 4°C storage. Other variable combinations were between these levels. A combination of improved pre-processing sanitation and a low temperature can therefore raise the hurdles for microbial growth to extend the shelf-life of bulk packed fresh salmon fillets packed at high volumetric densities for storage and shipping efficiency.
Publisher: Oxford University Press (OUP)
Date: 17-06-2020
Abstract: Bacteria, fungi, and other microorganisms in the environment (i.e., environmental microbiomes) provide vital ecosystem services and affect human health. Despite their importance, public awareness of environmental microbiomes has lagged behind that of human microbiomes. A key problem has been a scarcity of research demonstrating the microbial connections across environmental biomes (e.g., marine, soil) and between environmental and human microbiomes. We show in the present article, through analyses of almost 10,000 microbiome papers and three global data sets, that there are significant taxonomic similarities in microbial communities across biomes, but very little cross-biome research exists. This disconnect may be hindering advances in microbiome knowledge and translation. In this article, we highlight current and potential applications of environmental microbiome research and the benefits of an interdisciplinary, cross-biome approach. Microbiome scientists need to engage with each other, government, industry, and the public to ensure that research and applications proceed ethically, maximizing the potential benefits to society.
Publisher: College of Graduate Studies, Walailak University
Date: 31-07-2023
Abstract: Exploring the possibility of using agricultural waste as a substrate for the synthesis of cellulase enzymes for fuel and renewable energy is the main goal of this study, which is in line with the notions of sustainable development and environmental stewardship. The product of delignification of cocoa peel can be used as a substrate for cellulase enzymes producing by yeast isolated from Balinese palm wine. Cellulase enzymes made from yeast from Balinese palm wine can be produced using the delignified cocoa peel as a substrate. This study aims to analyze the cellulase enzyme activity of yeast from Bali's palm wine on delignified cocoa bark substrates. The tests carried out were delignification of cocoa bark (solvent variations: HCl, H2SO4 and NaOH concentrations: 1, 1.5 and 2 % biomass 1:15 and 1:20 (w/v)) screening of cellulolytic yeast from Balinese palm wine molecular identification and morphological characteristics of yeast and cellulase enzyme activity (variation of yeast isolates and fermentation time of 48, 72 and 96 h). The results of delignification of cocoa shells showed that the use of 1.5 % NaOH solvent with cocoa shell powder biomass of 1:15 (9.59 ± 0.11) significantly differed from the value of reducing sugar content. Based on the screening results of 6 yeast isolates, 3 yeast isolates with the highest cellulolytic index values were selected, namely UNJCC Y-83 (0.29 ± 0.01 mm), UNJCC Y-123 (0.24 ± 0.01 mm) and UNJCC Y-84 (0.23 ± 0.01 mm). For testing cellulase enzyme activity. S. cerevisiae UNJCC Y-83 (4.11 ± 0.41 U/mL) S. cerevisiae UNJCC Y-84 (4.11 ± 0.33 U/mL) and P. manshurica UNJCC Y-123 (4.06 ± 0.12 U/mL) at 96 h of fermentation had significantly different cellulase enzyme activity. The results of identification of yeast rDNA in the D1/D2 region with NL1/NL4 primers obtained the identity of Saccharomyces cerevisiae UNJCC Y-83 Saccharomyces cerevisiae UNJCC Y-84 (99.66 % homology) and Pichia manshurica (100 % homology). Theobroma cocoa rind can be used as a yeast substrate to produce cellulase enzymes for fuel and renewable energy. HIGHLIGHTS Screening of 6 yeast isolates, 3 yeast isolates with the highest cellulolytic index values were selected, namely UNJCC Y-83 (0.29 ± 0.01 mm), UNJCC Y-123 (0.24 ± 0.01 mm) and UNJCC Y-84 (0.23 ± 0.01 mm) for testing molecular identification and cellulase enzyme activity The result of rDNA sequence analysis in the D1/D2 region showed that the yeast isolates UNJCC Y-83 and UNJCC Y-84 had a homology level of 99.66 % as Saccharomyces cerevisiae with a bootstrap value of 92 %. UNJCC Y-123 yeast isolate has a homology level of 100 % as Pichia manshurica with a bootstrap value of 100 % cerevisiae UNJCC Y-83 (4.11 ± 0.41 U/mL) S. cerevisiae UNJCC Y-84 (4.11 ± 0.33 U/mL) and P. manshurica UNJCC Y-123 (4.06 ± 0.12 U/mL) at 96 h of fermentation had significantly different cellulase enzyme activity Theobroma cocoa rind can be used as a yeast substrate to produce cellulase enzymes for fuel and renewable energy GRAPHICAL ABSTRACT
Publisher: Rynnye Lyan Resources
Date: 07-04-2023
DOI: 10.26656/FR.2017.7(2).998
Abstract: Bivalve molluscs, comprising oysters and mussels, are important seafood products as they represent over 56% of marine and coastal production and account for 12% of the seafood trade with a value of over USD 34 billion dollars. Bivalve molluscs are increasingly popular among consumers because of their high nutritional value and are considered sustainable seafood products as they do not require feed inputs and can make a significant contribution to food security. As filter feeders, bivalve molluscs can accumulate microorganisms, and improper post-harvesting handling and storage procedures could support the growth of spoilage and pathogenic microorganisms, causing spoilage and potential safety issues. At the same time, there is an increasing demand by consumers for fresh and minimally processed foods. Therefore, understanding the microbial ersity of bivalve molluscs and methods to control microbial growth is of increasing research interest. This review highlighted the recent developments in the understanding of the microbial community of bivalve molluscs and the use of innovative technologies for the preservation and shelf-life extension of seafood.
Publisher: Elsevier BV
Date: 06-2021
Publisher: Springer Science and Business Media LLC
Date: 10-03-2017
Publisher: Agency for Marine and Fisheries Research and Development
Date: 15-12-2021
Location: Indonesia
Location: Indonesia
No related grants have been discovered for Fera Dewi.