Fabrication of antimicrobial colorimetric pad for meat packaging based on polyvinyl alcohol aerogel with the incorporation of anthocyanins and silver nanoparticles
A novel colorimetric pad has been developed based on polyvinyl alcohol (PVA), paper fiber, silver nanoparticles (AgNPs), and purple sweet potato anthocyanins (PSPA), and showed good performance for the preservation and freshness indication of fresh meat. AbstractA novel colorimetric pad with porous structure, good antimicrobial activity, and pH-sensitivity has been developed based on polyvinyl alcohol (PVA), paper fibre, silver nanoparticles (AgNPs) and purple sweet potato anthocyanins (PSPA), aiming for the preservation and freshness indication of fresh meat. The effects of AgNPs content on the structure, physical propert...
Source: Packaging Technology and Science - May 29, 2023 Category: Food Science Authors: Yue He,
Shiguang Chen,
Dan Xu,
Dan Ren,
Xiyu Wu Tags: RESEARCH ARTICLE Source Type: research
Cassava begomovirus species diversity changes during plant vegetative cycles
Cassava is a root crop important for global food security and the third biggest source of calories on the African continent. Cassava production is threatened by Cassava mosaic disease (CMD), which is caused by a complex of single-stranded DNA viruses (family: Geminiviridae, genus: Begomovirus) that are transmitted by the sweet potato whitefly (Bemisia tabaci). Understanding the dynamics of different cassava mosaic begomovirus (CMB) species through time is important for contextualizing disease trends. Cassava plants with CMD symptoms were sampled in Lake Victoria and coastal regions of Kenya before transfer to a greenhouse ...
Source: Frontiers in Microbiology - May 25, 2023 Category: Microbiology Source Type: research
Effects of different ratios of mannitol to sorbitol on the functional properties of sweet potato starch films
This study offered a new theoretical basis that different ratios of mannitol to sorbitol improve different performances of starch films.PMID:37217055 | DOI:10.1016/j.ijbiomac.2023.124914 (Source: International Journal of Biological Macromolecules)
Source: International Journal of Biological Macromolecules - May 22, 2023 Category: Biochemistry Authors: Chenyu Ma Congping Tan Jixun Xie Fang Yuan Haiteng Tao Li Guo Bo Cui Chao Yuan Wei Gao Feixue Zou Zhengzong Wu Pengfei Liu Lu Lu Source Type: research
Anthocyanin-Containing Purple Sweet Potato (Ipomoea batatas L.) Synbiotic Yogurt Inhibited 3T3-L1 Adipogenesis by Suppressing White Adipocyte-Specific Genes
(Source: International Journal of Nanomedicine)
Source: International Journal of Nanomedicine - May 22, 2023 Category: Nanotechnology Tags: Journal of Experimental Pharmacology Source Type: research
The role of lutein-rich purple sweet potato leaf extract on the amelioration of diabetic retinopathy in streptozotocin-induced Sprague –Dawley rats
In conclusion, 400 mg/kg PSPL is the most effective dose for the amelioration of STZ-induced DR pathology in male SD rats. (Source: Frontiers in Pharmacology)
Source: Frontiers in Pharmacology - May 18, 2023 Category: Drugs & Pharmacology Source Type: research
The effect of Aspergillus luchuensis pectin methylesterase genes pmeA and pmeB on methanol production in sweet potato shochu
Biosci Biotechnol Biochem. 2023 Apr 25:zbad049. doi: 10.1093/bbb/zbad049. Online ahead of print.ABSTRACTTo reduce the methanol content in sweet potato shochu, we studied the pectin methylesterase genes of the shochu-koji mold Aspergillus luchuensis. We found the following three homologs of pectin methyleseterase in the genome of A. luchuensis: pmeA, pmeB, and pmeC. Using pectin as a substrate, the methanol-producing activity of the recombinant of each gene expressed in A. luchuensis was examined and found to be present in recombinant PmeA and PmeB. Additionally, small-scale fermentation of sweet potato shochu using disrupt...
Source: Bioscience, Biotechnology, and Biochemistry - May 15, 2023 Category: Biochemistry Authors: Osamu Mizutani Dararat Kakizono Toru Takahashi Nobuhiko Mukai Hisashi Fukuda Osamu Yamada Source Type: research
The effect of Aspergillus luchuensis pectin methylesterase genes pmeA and pmeB on methanol production in sweet potato shochu
Biosci Biotechnol Biochem. 2023 Apr 25:zbad049. doi: 10.1093/bbb/zbad049. Online ahead of print.ABSTRACTTo reduce the methanol content in sweet potato shochu, we studied the pectin methylesterase genes of the shochu-koji mold Aspergillus luchuensis. We found the following three homologs of pectin methyleseterase in the genome of A. luchuensis: pmeA, pmeB, and pmeC. Using pectin as a substrate, the methanol-producing activity of the recombinant of each gene expressed in A. luchuensis was examined and found to be present in recombinant PmeA and PmeB. Additionally, small-scale fermentation of sweet potato shochu using disrupt...
Source: Bioscience, Biotechnology, and Biochemistry - May 15, 2023 Category: Biochemistry Authors: Osamu Mizutani Dararat Kakizono Toru Takahashi Nobuhiko Mukai Hisashi Fukuda Osamu Yamada Source Type: research
The effect of Aspergillus luchuensis pectin methylesterase genes pmeA and pmeB on methanol production in sweet potato shochu
Biosci Biotechnol Biochem. 2023 Apr 25:zbad049. doi: 10.1093/bbb/zbad049. Online ahead of print.ABSTRACTTo reduce the methanol content in sweet potato shochu, we studied the pectin methylesterase genes of the shochu-koji mold Aspergillus luchuensis. We found the following three homologs of pectin methyleseterase in the genome of A. luchuensis: pmeA, pmeB, and pmeC. Using pectin as a substrate, the methanol-producing activity of the recombinant of each gene expressed in A. luchuensis was examined and found to be present in recombinant PmeA and PmeB. Additionally, small-scale fermentation of sweet potato shochu using disrupt...
Source: Bioscience, Biotechnology, and Biochemistry - May 15, 2023 Category: Biochemistry Authors: Osamu Mizutani Dararat Kakizono Toru Takahashi Nobuhiko Mukai Hisashi Fukuda Osamu Yamada Source Type: research
A Novel Halo-Acid-Alkali-Tolerant and Surfactant Stable Amylase Secreted from Halophile Bacillus siamensis F2 and Its Application in Waste Valorization by Bioethanol Production and Food Industry
Appl Biochem Biotechnol. 2023 May 12. doi: 10.1007/s12010-023-04559-x. Online ahead of print.ABSTRACTThe extracellular amylase production level by the moderate halophile Bacillus siamensis F2 was optimized, and the enzyme was biochemically characterized. The culture parameters for NaCl, carbon, nitrogen, pH, and temperature were optimized for high titers of amylase production. Growing B. siamensis F2 cultures in Great Salt Lake-2 medium with additions of (in g/L) NaCl (100), starch (30), yeast extract (2), KNO3 (2), and MgSO4 (1) at pH 8, 30 °C resulted in the maximum amylase production (4.2 U/ml). The amylase was active ...
Source: Applied Biochemistry and Biotechnology - May 12, 2023 Category: Biochemistry Authors: Baliram Gurunath Rathod Srinija Pandala Venkata Giridhar Poosarla Source Type: research
A Novel Halo-Acid-Alkali-Tolerant and Surfactant Stable Amylase Secreted from Halophile Bacillus siamensis F2 and Its Application in Waste Valorization by Bioethanol Production and Food Industry
Appl Biochem Biotechnol. 2023 May 12. doi: 10.1007/s12010-023-04559-x. Online ahead of print.ABSTRACTThe extracellular amylase production level by the moderate halophile Bacillus siamensis F2 was optimized, and the enzyme was biochemically characterized. The culture parameters for NaCl, carbon, nitrogen, pH, and temperature were optimized for high titers of amylase production. Growing B. siamensis F2 cultures in Great Salt Lake-2 medium with additions of (in g/L) NaCl (100), starch (30), yeast extract (2), KNO3 (2), and MgSO4 (1) at pH 8, 30 °C resulted in the maximum amylase production (4.2 U/ml). The amylase was active ...
Source: Applied Biochemistry and Biotechnology - May 12, 2023 Category: Biochemistry Authors: Baliram Gurunath Rathod Srinija Pandala Venkata Giridhar Poosarla Source Type: research
Towards rapidly quantifying and visualizing starch content of sweet potato [Ipomoea batatas (L.) Lam] based on NIR spectral and image data fusion
This study aimed to achieve the rapid quantification and visualization of the starch content in sweet potato via near-infrared (NIR) spectral and image data fusion. The hyperspectral images of the sweet potato samples containing 900-1700 nm spectral information within every pixel were collected. The spectra were preprocessed, analyzed and the 18 informative wavelengths were finally extracted to relate to the measured starch content using the multiple linear regression (MLR) algorithm, producing a good quantitative prediction accuracy with a correlation coefficient of prediction (rP) of 0.970 and a root-mean-square error of...
Source: International Journal of Biological Macromolecules - May 10, 2023 Category: Biochemistry Authors: Hong-Ju He Yuling Wang Yangyang Wang Qais Ali Al-Maqtari Hongjie Liu Mian Zhang Xingqi Ou Source Type: research
Towards rapidly quantifying and visualizing starch content of sweet potato [Ipomoea batatas (L.) Lam] based on NIR spectral and image data fusion
This study aimed to achieve the rapid quantification and visualization of the starch content in sweet potato via near-infrared (NIR) spectral and image data fusion. The hyperspectral images of the sweet potato samples containing 900-1700 nm spectral information within every pixel were collected. The spectra were preprocessed, analyzed and the 18 informative wavelengths were finally extracted to relate to the measured starch content using the multiple linear regression (MLR) algorithm, producing a good quantitative prediction accuracy with a correlation coefficient of prediction (rP) of 0.970 and a root-mean-square error of...
Source: International Journal of Biological Macromolecules - May 10, 2023 Category: Biochemistry Authors: Hong-Ju He Yuling Wang Yangyang Wang Qais Ali Al-Maqtari Hongjie Liu Mian Zhang Xingqi Ou Source Type: research
Genes, Vol. 14, Pages 1042: Yeast One-Hybrid Screening for Transcription Factors of IbbHLH2 in Purple-Fleshed Sweet Potato
g Gao
The transcription factor IbbHLH2 has been identified as involved in the biosynthesis of anthocyanins in purple-flesh sweet potatoes. However, little is known about the upstream transcription regulators of the promoter of IbbHLH2 in terms of their involvement in anthocyanin biosynthesis. For this study, the transcription regulators of the promoter of IbbHLH2 were screened via yeast one-hybrid assays in purple-fleshed sweet potato storage roots. Seven proteins, namely IbERF1, IbERF10, IbEBF2, IbPDC, IbPGP19, IbUR5GT, and IbDRM, were screened as upstream binding proteins of the promoter of IbbHLH2. The interactions ...
Source: Genes - May 5, 2023 Category: Genetics & Stem Cells Authors: Danwen Fu Yahui Chen Feng Gao Tags: Article Source Type: research
Diversity and abundance of terrestrial molluscs and their associated nematode fauna in urban kitchen gardens in the city of Rio de Janeiro, Brazil
An Acad Bras Cienc. 2023 Apr 14;95(1):e20220249. doi: 10.1590/0001-3765202320220249. eCollection 2023.ABSTRACTTerrestrial molluscs can become agricultural pests and transmit parasites, playing an important role in different biological communities. In the present study, we evaluated the diversity and abundance of this group in two horticultural areas in Rio de Janeiro (Manguinhos and Jacarepaguá neighborhoods), as well the presence of parasitic nematodes associated with these molluscs. We collected specimens in the austral spring and summer, with four sites being sampled within each study area, including malabar spinach, s...
Source: An Acad Bras Cienc - April 19, 2023 Category: Science Authors: Karina L DE Oliveira Paulo S érgio Rodrigues Daniele Decanine Suzete R Gomes Source Type: research
Diversity and abundance of terrestrial molluscs and their associated nematode fauna in urban kitchen gardens in the city of Rio de Janeiro, Brazil
An Acad Bras Cienc. 2023 Apr 14;95(1):e20220249. doi: 10.1590/0001-3765202320220249. eCollection 2023.ABSTRACTTerrestrial molluscs can become agricultural pests and transmit parasites, playing an important role in different biological communities. In the present study, we evaluated the diversity and abundance of this group in two horticultural areas in Rio de Janeiro (Manguinhos and Jacarepaguá neighborhoods), as well the presence of parasitic nematodes associated with these molluscs. We collected specimens in the austral spring and summer, with four sites being sampled within each study area, including malabar spinach, s...
Source: An Acad Bras Cienc - April 19, 2023 Category: Science Authors: Karina L DE Oliveira Paulo S érgio Rodrigues Daniele Decanine Suzete R Gomes Source Type: research
