117 research outputs found
Bio-conversion of rice straw waste in to high quality organic fertilizer
In India, 353 Mt crop stubble annually generated from
rice and wheat crops respectively. About 84 Mt (23.86%) of
the stubble is being burnt on-field by the farmers every year
(Abdurrahman et al., 2020). Use of these unused crop residues
(stubbles) for generating compost, incorporation into
soil, biochar etc. will result in benefit to farmers by enhanced
soil health and to environment by reduced pollution
(Jain et al., 2014). Thus, the paddy straw was used to decompose
it with the help of aerobic composting and the
results are shared in this paper.
It is evident from the above table that rice straw good
source of nutrient. About 40% of the N, 30-35% of the P,
80-85% of the K and 40-45% of the S absorbed by rice
remain in the vegetative parts at maturity. Therefore, one
ton of rice straw contains 5-8 Kg N, 0.7-1.2 Kg P, 12-17 Kg
K, 0.5-1 Kg S, 3-4 Kg Ca, 1-3 Kg Mg and 40-70 Kg Si
(Dobermann and Wilt 2000).with Madhyam culture @ 200 kg cow dung for 1000 kg
biomass. The compost heaps have been irrigated on alternative
days and turning over has been conducted for every 10
days (Chander et al., 2018). The compost samples (KH1 to
18) were analyzed for organic carbon by Walkley black
method and other parameters like N, P, K have been analyzed
by ICPMS
Study of the effect of natural antioxidants in polyethylene: Performance of β-carotene
The effect of β-carotene on the behaviour of polyethylene stabilized with α-tocopherol and a phosphonite antioxidant was studied under processing and storage conditions. The amount of β-carotene ranged between 0 and 2000 ppm. The polymer was characterised by different methods after processing then during and after storage at ambient temperature in light and dark. β-Carotene hinders the oxidation of polyethylene and does not increase the chain extension reactions during processing, though more vinyl groups and phosphonite molecules react. β-Carotene colours polyethylene strongly already at low concentrations. The reactions of the polymer and β-carotene are affected strongly by the storage conditions. The presence of β-carotene does not influence the stabilizing efficiency of the primary and secondary antioxidants. In dark the molecular structure of the polymer does not change appreciably, while the reactions of β-carotene lead to an increase in the yellowness index. In light the molecular characteristics of polyethylene undergo significant changes indicating long chain branching. The polymer fades rapidly after an induction period. The length of the induction period is not influenced by light. The rate of the degradation reactions of β-carotene during storage is controlled by its concentration and film thickness. Visible autoaccelerated decomposition in light renders β-carotene candidate as an indicator in active packaging materials
Regulation of bacterial priming and daughter strand synthesis through helicase-primase interactions
The replisome is a multi-component molecular machine responsible for rapidly and accurately copying the genome of an organism. A central member of the bacterial replisome is DnaB, the replicative helicase, which separates the parental duplex to provide templates for newly synthesized daughter strands. A unique RNA polymerase, the DnaG primase, associates with DnaB to repeatedly initiate thousands of Okazaki fragments per replication cycle on the lagging strand. A number of studies have shown that the stability and frequency of the interaction between DnaG and DnaB determines Okazaki fragment length. More recent work indicates that each DnaB hexamer associates with multiple DnaG molecules and that these primases can coordinate with one another to regulate their activities at a replication fork. Together, disparate lines of evidence are beginning to suggest that Okazaki fragment initiation may be controlled in part by crosstalk between multiple primases bound to the helicase
How glucosylation triggers physical-chemical properties of curcumin: an experimental and theoretical study
A distinct first replication cycle of DNA introduced in mammalian cells
Many mutation events in microsatellite DNA sequences were traced to the first embryonic divisions. It was not known what makes the first replication cycles of embryonic DNA different from subsequent replication cycles. Here we demonstrate that an unusual replication mode is involved in the first cycle of replication of DNA introduced in mammalian cells. This alternative replication starts at random positions, and occurs before the chromatin is fully assembled. It is detected in various cell lines and primary cells. The presence of single-stranded regions increases the efficiency of this alternative replication mode. The alternative replication cannot progress through the A/T-rich FRA16B fragile site, while the regular replication mode is not affected by it. A/T-rich microsatellites are associated with the majority of chromosomal breakpoints in cancer. We suggest that the alternative replication mode may be initiated at the regions with immature chromatin structure in embryonic and cancer cells resulting in increased genomic instability. This work demonstrates, for the first time, differences in the replication progression during the first and subsequent replication cycles in mammalian cells
Comparative antioxidant and bioavailability studies of Vitamin C in Phyllanthus emblica Linn. and its combinations with Piper nigrum Linn. and Zingiber officinale Roscoe
Development and validation of a fluorimetric method to determine curcumin in lipid and polymeric nanocapsule suspensions
Enrichment of nutritional value of Phyllanthus emblica fruit juice using the probiotic bacterium, Lactobacillus paracasei HII01 mediated fermentation
Gold Nanoparticles Prepared with Phyllanthus emblica Fruit Extract and Bifidobacterium animalis subsp. lactis Can Induce Apoptosis via Mitochondrial Impairment with Inhibition of Autophagy in the Human Gastric Carcinoma Cell Line AGS
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