Freshwater Aquaculture Fisheries Innovation and Fresh Fish Marketing

In this article the care and promotion of freshwater fish is discussed. The stages of cultivation include the development medium preparation, supply of indulges/seed dispersal, management of water, management of feedstuff, pest control and disease management. Furthermore, advances on the marketing of freshwater fish are aimed at enhancing the economy of the population in terms of revenue, processing, delivery, entry, and utilization of products that provide the resources of the community. Innovation of fresh fish marketing A number of operations are linked to each other in the fishing agri-business framework including the sourcing, manufacturing, post-harvest processing (agro-industries), marketing and institutions. There is a method to produce a commodity all things in the fisheries agribusiness. In all operations producing products or services, marketing activities are also relevant. Fisheries may be divided into commodities and commodities.

A Review on Bioreactor Technology Assisted Plant Suspension Culture

This review is related to bioreactors for plant suspension culture and its products. Bioreactor plays an important role in bioprocess engineering. The core of bioprocessing technology is the bioreactor. A bioreactor is basically a device in which the organisms are cultivated and helps in production of desired products in a contained environment. Bioreactors are usually a containment which provides optimal condition for microorganisms in order to produce desired products. In this review, the bioreactor’s principle, working and its types are discussed. Enclosed by unit operations that carry out physical changes for medium preparation and recovery of products, the reactor is where the major chemical and biochemical transformations occur. In many bioprocess, characteristic of the reaction determined to a large extent the economic feasibility of the project. The integration of biosynthesis and separation is considered as a possible approach towards more efficient plant cell and tissue culture. In this review article, the aspects of bioprocess engineering for plant suspension culture and its products, bioreactor types, optimized strategies for production of secondary metabolites also and its industrial applications.

Aqueous Medium Preparation of Dialkyldiselenides

One-pot, two-step reaction conditions have been developed for the preparation of dialkyl diselenides by the treatment of alkyl halides with potassium selenocyanate followed by alkaline hydrolysis of the in situ generated alkyl selenocyanate in water. The reaction is reasonably fast and the yields of the products were very good. Several functional groups present in the substrates were unaffected under the reaction conditions.

Prospects of Using Hydrodynamic Cavitation for Enhancement of Efficiency of Fluid Working Medium Preparation Technologies

In this article a hardware estimation procedure and optimization of parameters of working fluid cavitation processing are proposed. Here the basic aspects of preparation efficiency and using of water-fuel emulsion are reviewed. An example of estimation of energy parameters of hydrodynamic activator operation in obtaining water-fuel emulsion is supplied.

Evaluation of Plant Growth on Expanded Black Cotton Soil

In aggregate hydroponics, the suitability of a particular medium is often guided by its physical properties. However these may not provide adequate evaluation. By growing a crop, the growth characteristics can also be used to guide medium preparation and selection. Tomatoes (Anna F1 variety) were grown in containers under a greenhouse and provided with equal amount of nutrient solution. The expanded black cotton soil was prepared by mixing with rice husk at a ratio of 90:10, fired at 750oC for 30 minutes and size reduced to various textures. The crops planted in the expanded clay aggregates performed better than the black cotton soil both in terms of stem elongation and enlargement due to improved drainage, nutrient flow and aeration conditions. The root length density was 25654 m m-3 in black cotton soil, being the highest and lowest in the coarse aggregates which had 9433 m m-3.