Post-harvest losses relate to the degradation in the quantity and quality of the crop’s products from harvesting to consumer usage. In many developing countries, like Pakistan, the post-harvest loss is a problem of food security and is of concern to everyone. Inappropriate handling of agricultural products after harvest may cause quality and quantity losses. It also accounts for the increasing prices of agricultural products in Pakistan. The total production of vegetables and fruits in Pakistan is nearly 13.764 million tons, and it is estimated that 35% to 40% of vegetables and fruits were wasted after harvesting. Severe losses and deterioration of vegetables and fruits occurred mainly during harvesting, along with distribution, transportation, and storage. The important reasons for post-harvest losses include mechanical damage, poor handling, microorganisms (bacteria, fungi), unawareness and lack of modern technologies, time management, insects, and mites. Reduction of post-harvest losses is the main goal of the agricultural sector. Training and educational initiatives could be one of the best strategies for minimizing post-harvest losses. The main objective of this review is, to explain the major production, quality deteriorations of vegetables and fruits, and the causes of post-harvest losses in Pakistan. It can be applied as a positive indication because all bodies involved will strive to implement efficient and effective approaches and policies to address the existing problems.
Background Exploration of marine macroalgae poly-saccharide-based nanomaterials is emerging in the nanotechnology field, such as wound dressing, water treatment, environmental engineering, biosensor, and food technology. Main body In this article, the current innovation and encroachments of marine macroalgae polysaccharide-based nanoparticles (NPs), and their promising opportunities, for future prospect in different industries are briefly reviewed. The extraction and advancement of various natural sources from marine polysaccharides, including carrageenan, agarose, fucoidan, and ulvan, are highlighted in order to provide a wide range of impacts on the nanofood technology. Further, seaweed or marine macroalgae is an unexploited natural source of polysaccharides, which involves numerous different phytonutrients in the outermost layer of the cell and is rich in sulphated polysaccharides (SP), SP-based nanomaterial which has an enhanced potential value in the nanotechnology field. Conclusion At the end of this article, the promising prospect of SP-based NPs and their applications in the food sector is briefly addressed.
Background Non-synchronized pods shattering in the Brassicaceae family bring upon huge yield losses around the world. The shattering process was validated to be controlled by eight genes in Arabidopsis, including SHP1, SHP2, FUL, IND, ALC, NAC, RPL, and PG. We performed genome-wide identification, characterization, and expression analysis of shattering genes in B.napus and B. juncea to gain understanding into this gene family and to explain their expression patterns in fresh and mature siliques. Results A comprehensive genome investigation of B.napus and B.juncea revealed 32 shattering genes, which were identified and categorized using protein motif structure, exon-intron organization, and phylogeny. The phylogenetic study revealed that these shattering genes contain little duplications, determined with a distinct chromosome number. Motifs of 32 shattering proteins were observed where motifs1 and 2 were found to be more conserved. A single motif was observed for other genes like Br-nS7, Br-nS9, Br-nS10, Br-jS21, Br-jS23, Br-jS24, Br-jS25, and Br-jS26. Synteny analysis was performed that validated a conserved pattern of blocks among these cultivars. RT-PCR based expressions profiles showed higher expression of shattering genes in B. juncea as compared to B.napus. SHP1, SHP2, and FUL gene were expressed more in mature silique. ALC gene was upregulated in fresh silique of B. napus but downregulation of ALC were observed in fresh silique of B. juncea. Conclusion This study authenticates the presence of shattering genes in the local cultivars of Brassica. It has been validated that the expression of shattering genes were more in B. juncea as compared to B.napus. The outcomes of this study contribute to the screening of more candidate genes for further investigation.
The outbreak of COVID-19 was emerged initially in Wuhan, Hubei province of China in December 2019 then quickly spread throughout the world. The World Health Organization (WHO) confirmed it a public health emergency of global concern and is causing cumulative alarm. The International Committee on Taxonomy of Viruses (ICTV) named acute respiratory syndrome coronavirus 2 (SARS-CoV-2). COVID-19 virus is composed of ssRNA having 60-120 nm of genomic diameter. It has high infection ability and a low mortality rate then (SARS-CoV and MERS-CoV). Now a vaccine has been developed for the treatment of COVID-19. The prevention of existing viruses must be followed by WHO guidance i.e. social separation, washing hands regularly, disinfecting use in the workplace and home. Here we summarize the origin, prevalence, diagnosis, treatments, as well listed of vaccines against the COVID-19 virus. The main aim of the current review article comprises data obtained from current research papers and WHO recommendations to prevention, care, trial with a new investigation of research, treatment, an invention of updated vaccines, and provide bibliophiles through the present information on the emerging contagious outbreak.
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