Black tiger shrimp shell (Penaeus monodon) has a potential as raw materials in the manufacturing process of nano-chitosan that contains chitin. The purposes of this study is to formed nano-chitosan through ionic gelation process and size reduction by magnetic stirrer and determine the characteristic of nano-chitosan based on morphology and size of nanoparticles. Nano-chitosan were formed by ionic gelation method, which is polyelectrolite complexation between the positively charged chitosan and negative charged tripolyphosphate. Yield of chitosan from Black Tiger Shrimp shell are 19,08%, while the yield of nano-chitosan by size reduction treatment using a magnetic stirrer is 80,67%. Value of the deacetylation degree from chitosan which is used to formed nano-chitosan is equal to 98,65%, it indicates the chitosan which is produced is a native chitosan. Nano-chitosan have an average size of 228.74 nm, fairly uniform, relatively stable and has a sphere like particle shape. Particle size reduction with magnetic stirrer, can distribute more homogeneous particle size. Added tripolyphosphate (TPP) and surfactants (Tween 80) can enhance the mechanical properties of chitosan that are naturally fragile and enhanced formation if ionic crosslinking between chitosan molecules.

Squid (Loligo sp.) is one of fisheries commodities export in Indonesia. Squid has cartilage that can be utilized in the food and non-food sectors. The inner skin of the squid cartilage contains chemical compounds are chitin and chitosan. The objectives of this research are to produce chitosan from squid cartilage and tested the antibacterial effectiveness of chitosan in bacteria Staphylococcus aureus and Escherichia coli. The research method was carried out in twophase; the manufacturing phase of chitosan from squid cartilage and the testing phase for the antibacterial activity of chitosan. The results of the first phase of this study indicate that the chitosan produced meets the quality standards of chitosan with water content 7.82% (bk), ash content 0.57% (bk), nitrogen content 3.18% (bk) and degree of deacetylation 87.43%. Further more the results obtained in the second phase showed that the higher of chitosan concentration, the greater of inhibition zone in the tested bacteria. The best antibacterial activity was found at 0.8% chitosan concentration, with an inhibition zone of 12.8 ± 0.06 mm in E. coli and 11.1 ± 0.12 mm in S. aureus. At a concentration of 0.8% showed a greater inhibitory value when compared to 70% alcohol.

The major problem in fishing production activities faced by fishermen in Wawatu Village is the limited fishing ground area caused by unfriendly-environmentally fishing activities, unorganized spawning and nursery areas so that the availability of fish stocks in their habitats is insufficient for fishermen and traditional fishery businesses. The main focus of this community dedication activity was to further optimize FADs functions as a fishing tool, attracting squid and crabs to gather inside the FADs area. This activity can be one of the solutions to increase fish production during the COVID-19 pandemic in Wawatu Village, North Moramo District, South Konawe Regency. There were two approaches in this activity, namely 1) approach of participatory training to partners, 2) technology applications at the demonstration plot (demplot) location. The result showed that the community was quite enthusiastic in participating in all activities including training and discussion activities as well as the application of environmentally friendly FADs technology, including active participation in material preparation, making of FADs and installing FADs in the water.

Tanjung Tiram is a coastal village whose residents mainly works as fishermen and many benefits from its coastal to search for fish and fulfill their daily needs. A Community Service Program through Community Partnership was conducted for 2 days from 27-28 October 2019 in Tanjung Tiram, North Moramo District, South Konawe Regency, Southeast Sulawesi Province. The objective of the program was to improve the knowledge and skills of society living in the village through the production of fish base processing products. The program was carried out by training the society creating fish base products and as an alternative income for the fishermen family. The targets of the program were women and mother household. The output achieved out of this program was the ability of society to understand and know how to create fish base processing products particularly meatball and fish nuggets that have never been made before.

One method that can be applied in the production of flavor enhancers is the foam-mat drying method using Tween 80 and maltodextrin. This research aimed to examine the effect of the Tween 80 and maltodextrin combination on the characteristics of flavor enhancers from Megalops cyprinoides. This research used a factorial completely randomized design with two factors. Factor one was Tween 80 concentration of 2%, 4%, and 6%, and factor two was maltodextrin concentration of 10%, 20%, and 30%. The test parameters included yield, pH, and Maillard reaction products. The results showed that Tween 80 and maltodextrin concentration significantly affected yield, pH, and Maillard reaction products of flavor enhancers from Megalops cyprinoides (P0.05). The greater the concentration of Tween 80 and maltodextrin, the greater the yield value, while the Maillard reaction product value decreased. Increasing the concentration of maltodextrin caused the pH value to decrease. Conversely, increasing the concentration of Tween 80 caused the pH value to increase. Based on the research result, the best treatment was Tween 80 concentration of 6% and maltodextrin concentration of 10%, with the yield of 43.33%; pH of 3.78; and Maillard reaction product 0.608 AU.