scholarly journals Comparison of the Quality of Chitin and Chitosan from Shrimp, Crab and Squilla Waste

2017 ◽  
Vol 12 (3) ◽  
pp. 670-677 ◽  
Author(s):  
F. Parthiban ◽  
S. Balasundari ◽  
A. Gopalakannan ◽  
K. Rathnakumar ◽  
S. Felix
Keyword(s):  
Quality Parameters ◽  
Quality Parameter ◽  
Raw Material ◽  
Biological Value ◽  
Shrimp Shell ◽  
Shell Waste ◽  
Shrimp Shell Waste ◽  
Chitin And Chitosan ◽  
Better Than

Chitin and Chitosan obtained from the crustaceans are having more biological value such as physiological compatibility, non-toxicity, bio digestibility, adsorption and chelating capacity. These biological values of chitosan depend on the quality parameters which are directly related to the source of the raw material. In this study, three commercially available crustacean shell waste such as shrimp, crab and squilla were used for the extraction of chitin and chitosan. The chemical treatment of demineralization, deproteinization and deacetylation were used for the production of chitosan. The viscosity quality parameter of the shrimp chitosan (5300cPs) was better than the crab and squilla chitosan. It is due the high solubility (97.65%) of the shrimp chitosan in 1% acetic acid. The degree of deacetylation of the shrimp chitosan (81.24%) directly relates the solubility of the chitosan. The chitosan with these quality parameters considered to be the excellent biological value. The yield of shrimp chitosan (15.4%) was also more when compare to crab and squilla chitosan. These result showed that utilisation of shrimp shell waste for the production of chitin and chitosan will give more economical and biological value along with reduction of environmental pollution.

Antioxidant and antimicrobial proprieties of chitin and chitosan extracted from Parapenaeus Longirostris shrimp shell waste

2016 ◽  
Vol 74 (1) ◽  
pp. 27-33 ◽  
Author(s):  
J. Hafsa ◽  
M.A. Smach ◽  
B. Charfeddine ◽  
K. Limem ◽  
H. Majdoub ◽  
...  
Keyword(s):  
Shrimp Shell ◽  
Shell Waste ◽  
Parapenaeus Longirostris ◽  
Shrimp Shell Waste ◽  
Chitin And Chitosan

scholarly journals Influence of Microwave Irradiation on Extraction of Chitosan from Shrimp Shell Waste

REAKTOR ◽  
2018 ◽  
Vol 18 (1) ◽  
pp. 45 ◽  
Author(s):  
Dwi Titik Apriyanti ◽  
Heru Susanto ◽  
Nur Rokhati
Keyword(s):  
Reaction Time ◽  
Microwave Irradiation ◽  
Raw Material ◽  
Conventional Heating ◽  
Health Food ◽  
Shrimp Shell ◽  
Shell Waste ◽  
Long Time ◽  
Shrimp Shell Waste ◽  
The Impact

Chitosan is natural polysaccharides which is nontoxic, biodegradable, and biocompatible and have many advantages in various kinds of fields including health, food, agriculture, and industry. Chitosan usually take long time to extract by conventional method for deacetylation process of chitin. Raw material for chitosan can be found in shrimp shell waste. Chitosan manufactures usually need high temperatures and chemicals in large quantities and it takes much time and consumes a lot of energy where will give bad effect to the environment. Recently microwave irradiation as nonconventional energy sources is widely used in chemical reactions. To reduce the impact of environmental pollution due to excessive use of chemical treatment, the objective of this work is processing chitosan under microwave irradiation. Expected production of chitosan with the same mass requires fewer chemicals than conventional heating. In particular, the study will examine the effect of making the chitosan and adding chemicals, reaction time and operating temperature and degree of deacetylation in chitosan with conventional heating methods that the results will be compared using a microwave. In this research will be developed to the design and fabrication of prototype scale extractor for manufacturing chitosan from shrimp shell waste after optimum results obtained from the research laboratory scale. From the research we can conclude that microwave will speed up reaction time. FTIR also showed functional group of chitosan formed from microwave irradiation have same results.  Keywords: chitosan, shrimp shells, microwave

Eco-friendly extraction and characterization of chitin and chitosan from the shrimp shell waste via microwave irradiation

2016 ◽  
Vol 104 ◽  
pp. 395-405 ◽  
Author(s):  
H. El Knidri ◽  
R. El Khalfaouy ◽  
A. Laajeb ◽  
A. Addaou ◽  
A. Lahsini
Keyword(s):  
Microwave Irradiation ◽  
Shrimp Shell ◽  
Shell Waste ◽  
Shrimp Shell Waste ◽  
Chitin And Chitosan

scholarly journals A Hybrid Methodology to Minimize Freshwater Consumption during Shrimp Shell Waste Valorization Combining Multi-Contaminant Pinch Analysis and Superstructure Optimization

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1887
Author(s):  
Viviana Quintero ◽  
Arturo Gonzalez-Quiroga ◽  
Angel Darío Gonzalez-Delgado
Keyword(s):  
Process Integration ◽  
Preliminary Design ◽  
Water Network ◽  
Hybrid Strategy ◽  
Shrimp Shell ◽  
Optimal Value ◽  
Shell Waste ◽  
Programming Techniques ◽  
Shrimp Shell Waste ◽  
Freshwater Consumption

The conservation and proper management of natural resources constitute one of the main objectives of the 2030 Agenda for Sustainable Development designed by the Member States of the United Nations. In this work, a hybrid strategy based on process integration is proposed to minimize freshwater consumption while reusing wastewater. As a novelty, the strategy included a heuristic approach for identifying the minimum consumption of freshwater with a preliminary design of the water network, considering the concept of reuse and multiple pollutants. Then, mathematical programming techniques were applied to evaluate the possibilities of regeneration of the source streams through the inclusion of intercept units and establish the optimal design of the network. This strategy was used in the shrimp shell waste process to obtain chitosan, where a minimum freshwater consumption of 277 t/h was identified, with a reuse strategy and an optimal value of US $5.5 million for the design of the water network.

scholarly journals Effect of Fertilisation on the Quality of Dried Coriander (Coriandrum sativum L.) and Lovage (Levisticum officinale)

Agriculture ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 386
Author(s):  
Natalia Matłok ◽  
Józef Gorzelany ◽  
Adam Figiel ◽  
Maciej Balawejder
Keyword(s):  
Bioactive Compounds ◽  
Crop Production ◽  
Solid Phase ◽  
Quality Parameters ◽  
Raw Material ◽  
Vacuum Microwave ◽  
Dpph Method ◽  
Total Antioxidant ◽  
Total Antioxidant Potential

The study presents the effects of fertilisation on selected quality parameters of the dried material obtained from plants of lovage and coriander. During the crop production process, the plants were treated with two fertilisers containing substances potentially acting as elicitors. The dried material was obtained in course of a drying process carried out in optimum conditions and based on the CD-VMFD method which combines convective pre-drying (CD) at a low temperature (40 °C) with vacuum-microwave finish drying with the use of 240 W microwaves (VMFD). The quality of the dried material was evaluated through measurement of the total contents of polyphenols, total antioxidant potential (ABTS and DPPH method), and the profile of volatile compounds (headspace-solid phase microextractio-HS-SPME) as well as assessment of the colour. It was found that by applying first fertilisation (with organic components) it is possible to significantly increase the contents of both bioactive compounds and volatile substances responsible for the aroma. It was determined that the higher content of bioactive compounds was related to the composition of the first fertiliser, presumably the extract from common nettle. The study showed that the application of the first fertiliser contributed to enhanced quality parameters of the raw material obtained.

Optimization of Harvesting of Microalgal Thalassiosira pseudonana Biomass Using Chitosan Prepared from Shrimp Shell Waste

2016 ◽  
Vol 10 (5) ◽  
pp. 162-174 ◽  
Author(s):  
Trang Si Trung ◽  
Nguyen Thi Khanh Huye ◽  
Nguyen Cong Minh ◽  
Tran Thi Le Trang ◽  
Nguyen The Han
Keyword(s):  
Thalassiosira Pseudonana ◽  
Shrimp Shell ◽  
Shell Waste ◽  
Shrimp Shell Waste

scholarly journals Utilization of Shrimp Shell Waste as Alternative Raw for Mariculture

2021 ◽  
Vol 324 ◽  
pp. 03006
Author(s):  
Tri Yulianto ◽  
Dwi Septiani Putri ◽  
Shavika Miranti ◽  
Wiwin Kusuma Atmaja Putra
Keyword(s):  
Fish Meal ◽  
Raw Materials ◽  
Nutrient Content ◽  
Proximate Analysis ◽  
Raw Material ◽  
Fish Feed ◽  
Microsoft Excel ◽  
Feed Production ◽  
Shrimp Shell ◽  
Shrimp Shell Waste

Feed is still one of the problems in aquaculture because it takes about 70% of operational costs. High prices is caused by imported raw materials for feed production. One possible effort to overcome this problem is to find alternative local raw materials to replace imported fish meal. The purpose of this study was to examine the proximate content of shrimp shell wastes from processing shrimp crackers (Paneus sp.) to be used as shrimp flour. Samples were colledted three times in a month, at the beginning, middle and end of the month. The waste of the heads, shells and tails of the shrimp were turned into flour for laboratory testing through proximate analysis. The data were tabulated using the Microsoft Excel softwareand then analyzed descriptively by comparing the nutrient content of shrimp waste flour with the feed requirements of mariculture. The results showed that shrimp shell flour contained protein, fat, carbohydrates and ash content of around 27.4%, 2.07%, 14.84% and 47.27%. while the resulting randemen ranged from 81.75%. Therefore, shrimp shell flour can be used as an alternative raw material for preparing marine fish feed.

scholarly journals ANALYSIS OF STATISTICAL DEPENDENCES OF VOICE DATA QUALITY CHARACTERISTICS IN TRAFFIC OF IP-NETWORKS

2019 ◽  
Vol 2019 (6) ◽  
pp. 92-97
Author(s):  
Кирилл Батенков ◽  
Kirill Batenkov ◽  
Александр Королев ◽  
Aleksandr Korolev ◽  
Михаил Илюшин ◽  
...  
Keyword(s):  
Quality Parameters ◽  
Quality Parameter ◽  
Statistical Characteristics ◽  
Tcp Protocol ◽  
Service Information ◽  
Ip Network ◽  
Standard Quality ◽  
Voice Message ◽  
Voice Data

The aim of the work is to investigate statistical characteristics of multimedia services traffic of IP-network on the basis of the service information analysis of package headings. The investigation method is mathematical mod-eling in the Mathcad 14 environment. As a result of the investigations, a mathematical apparatus allowing the fulfillment of a point and interval assessment of separate constituents of voice messaging quality and also the decisionmaking regarding the satisfaction degree by users with the service offered. In the work on the basis of measurements with the aid of the Wireshark program and the TCP protocol there are carried out the investigations of permissible fields in a quality parameter variation of voice message perception. A stochastic tie is revealed between transfer standard quality parameters by means of plotting diagrams and histograms of the assessments of these parameters mutual impact. The most significant indices of transfer quality parameters form the standpoint of their impact upon quality of voice message perception are RTT indices and loss factors.

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