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Dual Culture Inoculation Enhanced Quality of Silage Produced from Leguminous Plants
Muthusamy, Karnan,Ilavenil, Soundharrajan,Jung, Jeong Sung,Lee, Bae Hun,Park, Hyung Soo,Choi, Ki Choon The Korean Society of Grassland and Forage Science 2021 한국초지조사료학회지 Vol.41 No.3
Ensiling is the most preferred technology to preserve the silage quality with high nutrients by the presence of lactic acid bacteria. In this study, lactic acid bacteria RJ1 and S22 were used to make the silages from different leguminous plants such as alfalfa, hairy vetch and red clover. Experimental groups were divided into control and LAB inoculated groups. LAB inoculated group; all legumes treated with a mixture of RJ1 and S22 and made an anaerobic condition for 45d. Without the addition of LAB considered the control group. The results showed that the lactic acid content was higher in all silages in response to LAB treatment and acetic acid content was slightly increased except red clover by LAB compared to control silages. A poor silage quality marker butyric acid was reduced all legume silages in response to LAB inoculation than control silages. The organic acid is closely associated with microbial population experimental silages. We noted that higher LAB and lower yeast were found in the silage in response to LAB treatment. The contents of crude protein (CP), acid detergent fiber (ADF), neutral detergent fiber (NDF), and total digestible nutrient (TDN) were not altered significantly between control and LAB treated silages. Overall data suggested that the inclusion of additional LAB potentially enhance the silage quality and preserved the nutrients for long period.
Karnan Muthusamy,정종성,이배훈,남철환,박형수,최기춘 한국초지조사료학회 2022 한국초지조사료학회지 Vol.42 No.3
Alfalfa is one of the most useful forage crops worldwide, containing a high level of amino acids that are essential to both human and animal health. However, amino acids and their concentrations may differ between plant parts. Hence, detecting amino acids in different plant parts would be useful in the development of diet supplements. The purpose of this study was to determine the amino acid content in alfalfa leaves, stems, and inflorescences using an amino acid analyzer. Asparagine and glutamic acid were the most abundant amino acids found in stems, leaves, and inflorescences than other amino acids. All parts of alfalfa had low concentrations of cysteine and methionine. All amino acids except asparagine were present in the highest concentration in leaves followed by inflorescences. Leaf had a rich amino acid content, namely asparagine, glutamic acid, leucine, proline, and lysine. However, the stem had a lower amino acid composition than the leaf or inflorescence. Overall, the data showed determining the amino acid content of forages provides a good approach to making animal feed with essential and specific amino acids and preventing excessive inclusion of amino acids.
Improvement of Orchardgrass (Dactylis glomerata L.) Silage Quality by Lactic Acid Bacteria
Soundharrajan Ilavenil,Karnan Muthusamy,Jeong Sung Jung,Bae Hun Lee,Hyung Soo Park,Ki Choon Choi 한국초지조사료학회 2021 한국초지조사료학회지 Vol.41 No.4
In the current study, lactic lactic acid bacteria (LAB) Lactobacillus plantarum and Pediococcus pentosaceus were used as a mixed additive for the production of Orchardgrass silage by ensiled method and nutritional change fermentation ability and microbial content of experimental silages. The addition of LAB to Orchardgrass during ensiling process rapidly reduced the pH of the silages than the non-inoculated silages. In addition, the lactic and acetic acid content of silage was increased by LAB strains than the non-inoculated silages whereas butyric acid content was reduced in silage treated with LAB. A microbiological study revealed that higher LAB but lower yeast counts were observed in inoculated silages compared to non-inoculated silage. Overall data suggested that the addition of LAB stains could have ability to induce the fermentation process and improve the silage quality via increasing lactic acid and decreasing undesirable microbes.
Adhikesavan Harikrishnan,Maheswari Purushothaman,Devarajan Alagarasan,Annamraju Kasi Viswanath,Saravanan Pandiaraj,Jothi Ramalingam Rajabathar,Muthusamy Karnan 한국섬유공학회 2023 Fibers and polymers Vol.24 No.11
In the present study we demonstrated the fabrication of smart antibacterial nano-textile material development by nanostructured magnesium oxide particles (MgO-NPs). The gel combustion process was adopted to prepare the MgO-NPs which, after being combined with an acrylic binder, were coated over bleached cotton fabrics through a facile pad-dry-cure method. Physicochemical characterizations were carried out using analytical instruments including XRD, SEM, TEM, FE-SEM, AFM, FTIR and TGA. The MgO-NPs impregnated cotton fabrics were tested to evaluate their antibacterial properties and demonstrated good resistance towards bacterial activity when comparing the Gram positive and Gram negative bacteria, such as Staphylococcus aureus and Klebsiella pneumoniae, respectively. This work envisages a strategic approach to develop smart textiles application for biomedical applications.