Tuna Research Articles

EFFECT OF TEMPERATURE AND STORAGE TIME OF TUNA FISH (Euthynnus affinis) ON ORGANOLEPTIC AND SENSORY QUALITY

Tuna Fish was one of the main commodities in Ternate North Maluku. The importance of understanding good handling practice would has an impact on the quality of the fish, therefore this research will discuss the effect of temperature and storage time on the organoleptic and sensory quality of tuna fish. The effect of temperature and storage time on organoleptic and sensory quality determined by visually observing and conducting an organoleptic tuna fish and boil test for sensory values on fish. Organoleptic and sensory test were conducted by 30 panelis and all data analyzed using oneway anova and descriptive for sensory quality. The research results were found that the organoleptic quality of room temperature from 0th hour was significantly different with 12th hour and 24th hour and the organoleptic value at chilling room from 0th and 12th hour was significantly different with 24th hour. Overal the results of the sensory/boiled test at chilling temperature were still suitable for consumption because there was no honeycomb, curd, pasty, blood spots and there was no itchy or smell when eaten. Sensory result at room temperature at 0th hour and 12th hour were still suitable for consumption because there was no honeycomb, curd, pasty, blood spots and also It didn’t itchy or smell when eaten, which is different from the 24th hour, it was smells, itchy and there was a burning sensation on the tongue after consumed.

Acceptance of Skipjack Tuna Fish Nuggets with Moringa Leaves to Prevent Stunting in Toddlers

Background: The problem of stunting in toddlers is a priority for handling because it threatens human quality. Providing nutritious local food rich in animal protein is the key to handling toddler nutrition because it provides essential amino acids. One of the local foods that is rich in protein and easy to obtain in South Sulawesi is Skipjack Tuna (Katsuwonus pelamis) which contains complete protein and is rich in omega-3 fatty acids. Another local food is Moringa leaves (Moringa oleifera) which contain protein, vitamin A, and iron. This study aims to formulate and test the acceptability of skipjack tuna nuggets with the addition of moringa leaves.. Method: This research was conducted in August-September 2024. The formulation process of Skipjack Tuna and Moringa Leaf Nuggets was carried out at the Nutrition Laboratory of the Muhammadiyah University of Parepare, followed by testing the nutritional content at the Makassar Health Center and then organoleptic testing was carried out in Parepare City. The research sample consisted of 15 parents who had toddlers aged 24 months to 59 months by purposive sampling. Result: This research was conducted in August-September 2024. The formulation process of Skipjack Tuna and Moringa Leaf Nuggets was carried out at the Nutrition Laboratory of Muhammadiyah University of Parepare, nutritional content testing at BBLK Makassar and then organoleptic testing on a research sample of 15 parents who have toddlers aged 24 months to 59 months using purposive sampling. Conclusion: Formulation F1 has the highest protein and carbohydrate content, while Formulation F2 has the highest fat content. The results of the organoleptic test showed that Formulation F2 was considered the most preferred by respondents, with the highest values for color, aroma, and taste, while Formulation F1 had the highest value for texture.

Population dynamics of grey mackerel fish (Thunnus tonggol) caught in fishery management areas (WPP 711)

Grey mackerel is a fish that originates from tropical and subtropical waters worldwide. This pelagic fish has very important economic value in the Indonesian fishing industry. Grey mackerel production in WPP 711 using gillnet fishing gear has shown a fluctuating trend in recent years. This research is to estimate the stock of grey mackerel fish caught by fishermen who landed at PPN Pemangkat and Sungai Rengas Fishing Port. This research uses two data collection methods, namely primary and secondary data collection. The results of data analysis of the relationship between length and weight in the catch of grey tuna fish of 1,015 total fish samples produced the equation W = 0.0929x2.5504 (r2 = 0.8764) with a value of 0.0929 and the b value of 2,5504. Based on the results of the t-test, it shows that the value of b 3 in the growth pattern is negative allometric, meaning that the relationship between length and weight has a slow and rapid increase in weight compared to the increase in length. The landed grey mackerel had a growth rate coefficient (K) = 0.40. Tuna fish obtained a total mortality value (Z) of 1.81/ year. The exploitation rate (E) of grey tuna caught is 0.28/ year, which means the exploitation rate is still relatively low.Keywords: Gray mackerel; Pelagic Fish; Population dynamics; WPP 711Grey mackerel is a fish that originates from tropical and subtropical waters worldwide. This pelagic fish has very important economic value in the Indonesian fishing industry. Grey mackerel production in WPP 711 using gillnet fishing gear has shown a fluctuating trend in recent years. This research is to estimate the stock of grey mackerel fish caught by fishermen who landed at PPN Pemangkat and Sungai Rengas Fishing Port. This research uses two data collection methods, namely primary and secondary data collection. The results of data analysis of the relationship between length and weight in the catch of grey tuna fish of 1,015 total fish samples produced the equation W = 0.0929x2.5504 (r2 = 0.8764) with a value of 0.0929 and the b value of 2,5504. Based on the results of the t-test, it shows that the value of b 3 in the growth pattern is negative allometric, meaning that the relationship between length and weight has a slow and rapid increase in weight compared to the increase in length. The landed grey mackerel had a growth rate coefficient (K) = 0.40. Tuna fish obtained a total mortality value (Z) of 1.81/ year. The exploitation rate (E) of grey tuna caught is 0.28/ year, which means the exploitation rate is still relatively low. Keywords: Gray mackerel; Pelagic Fish; Population dynamics; WPP 711

Analisis Nilai Tambah Pengolahan Ikan Tuna (Studi Kasus Pada: Home Industry Rhoa Z Kota Ternate)

Simple processing of tuna catches can create added value. Production of tuna fish which is processed into fish floss and garo rica fish is also one of the superior products in the Rhoa Z Home Industry and has a relatively high selling price compared to other products. The aim of the research is to determine the income and added value of tuna fish processing obtained by Home Industry Rhoa Z. The method used in the research is the Hayami analysis method. The research results obtained on tuna fish processing products for fish floss products have an income of Rp. 51,456,108 fish floss in two sizes, 100 grams and 200 grams, 100 gram fish floss has an added value of IDR. 57,900 or 4.19% of production results. For 200 grams of fish floss, there is an added value of IDR. 41,800 or 1.39% of production results. Garo Rica fish has an income of Rp. 194,448,108 garo rica fish, there are also two sizes, 150 grams and 200 grams, 150 gram garo rica fish has an added value of Rp. 5,183 or 0.104% of production results. 200 gram Garo Rica fish has an added value of IDR. 23,713 or 0.30% of production results.Keywords: Value Added, Hayami Analysis, Tuna Fish Processing.

Real-Time Load Monitoring System for Tuna Fishing Ships: A Solution to Combat Illegal Transshipment

Abstract Illegal fishing activities are the biggest challenge for Indonesia in protecting its territorial waters from illegal fish transhipment. To address this issue, a real-time load measurement system is needed on ships. Real-time measurement devices can also replace land-based measurement functions, thus improving the quality of catch during the transfer of tuna from the ship to the cold storage. The method used in this research is testing, which requires real data to support and simulate the implementation of the study. The research involves a prototype that utilizes a load cell as a sensor for detecting the mass of fish, and NodeMCU as a microcontroller programmed with Arduino IDE language. The prototype is integrated with Wi-Fi to send data to a MySQL database. The sensor circuit consists of four load cells, a junction box, and an HX711 amplifier. The results of the sensor experiment at a 12-degree tilt condition, which indicates the roll or trim condition of the ship, show a decrease in sensor accuracy and relatively unstable results compared to normal conditions. The average accuracy rate of sensor readings under normal conditions is 99.42%, while the average accuracy rate of sensor readings at a 12-degree tilt is 96.98%.

Development of Bontang City Typical White Bread Food Products with the Use of Mackerel Tuna Fish (Euthynnus affinis) Broth on White Bread Quality

Development of Bontang City Typical White Bread Food Products with the Use of Mackerel Tuna Fish (Euthynnus affinis) Broth on White Bread Quality

The Effects of Additional Tuna Madihang Bone Fish Treatment on the Growth of Catfish (Clarias gariepinus) in Biofloc Pond in Ternate City North Maluku, Indonesia

The need for fish protein always increases along with the increase in urban population. To meet the food needs of the people in the city of Ternate, one way is to cultivate catfish using a biofloc system. To accelerate the growth of catfish, one of the efforts made is by adding fish bone meal to standard feed. Tuna fish bone meal contains minerals, especially calcium and phosphorus, which can help accelerate the growth of catfish so that harvest time can be accelerated. The objectives of the research are (1) To introduce catfish cultivation with a biofloc system that is effective, efficient and easy to do even on limited land (2) Fish bone meal addition treatment with fish bone meal concentrations (0%, 10%, 15% and 20%) and (3) The catfish cultivation system using the biofloc method can provide maximum results. The method used in this research is an experimental method on a biofloc pond system which consists of three biofloc ponds with a diameter of 3x3 meters. The results of this research are (1) Catfish is a fishery product that has an important prospect for development through cultivation using biofloc ponds (2) The best average value was in the treatment of adding fish bone meal with a concentration of 20% in almost all treatments except for the growth rate treatment which was highest in treatment (c) 0.73 and (3) The addition of tuna bone meal to biofloc pond cultivation can be used as a recommendation for developing catfish cultivation because it has quite promising market prospects.

RSNC-YOLO: A Deep-Learning-Based Method for Automatic Fine-Grained Tuna Recognition in Complex Environments

Tuna accounts for 20% of the output value of global marine capture fisheries, and it plays a crucial role in maintaining ecosystem stability, ensuring global food security, and supporting economic stability. However, improper management has led to significant overfishing, resulting in a sharp decline in tuna populations. For sustainable tuna fishing, it is essential to accurately identify the species of tuna caught and to count their numbers, as these data are the foundation for setting scientific catch quotas. The traditional manual identification method suffers from several limitations and is prone to errors during prolonged operations, especially due to factors like fatigue, high-intensity workloads, or adverse weather conditions, which ultimately compromise its accuracy. Furthermore, the lack of transparency in the manual process may lead to intentional underreporting, which undermines the integrity of fisheries’ data. In contrast, an intelligent, real-time identification system can reduce the need for human labor, assist in more accurate identification, and enhance transparency in fisheries’ management. This system not only provides reliable data for refined management but also enables fisheries’ authorities to dynamically adjust fishing strategies in real time, issue timely warnings when catch limits are approached or exceeded, and prevent overfishing, thus ultimately contributing to sustainable tuna management. In light of this need, this article proposes the RSNC-YOLO algorithm, an intelligent model designed for recognizing tuna in complex scenarios on fishing vessels. Based on YOLOv8s-seg, RSNC-YOLO integrates Reparameterized C3 (RepC3), Selective Channel Down-sampling (SCDown), a Normalization-based Attention Module (NAM), and C2f-DCNv3-DLKA modules. By utilizing a subset of images selected from the Fishnet Open Image Database, the model achieves a 2.7% improvement in mAP@0.5 and a 0.7% improvement in mAP@0.5:0.95. Additionally, the number of parameters is reduced by approximately 30%, and the model’s weight size is reduced by 9.6 MB, while maintaining an inference speed comparable to that of YOLOv8s-seg.

Diversification Strategy of Processed Tuna Fish Products for Coastal Community Empowerment in Bone Bolango Regency

Diversification of tuna fish products is a concern for coastal communities in Bone Bolango Regency because this will also get attention and support from the Bone Bolango Regency government considering the potential of tuna fish production in Bone Bolango Regency. This tuna fish product diversification strategy is one of the strategies carried out so that the tuna produced is not only sold through catches, but can be developed through diversification of various tuna fish product processing. This study aims to explore the understanding of coastal communities in Bone Bolango Regency in diversifying processed tuna products, and also to find out the factors that contribute greatly to empowering coastal communities in diversifying processed tuna products. For this reason, the first objective of this study will be analyzed qualitatively by interviewing respondents, the second will use the Analytical Hierarchy Process (AHP) method. The results of the analysis explain that in general, the understanding of the coastal community of Bone Bolango Regency about the diversification of processed tuna products is still not optimal. Some people are starting to realize the potential of processing tuna-based products, but limitations in technology and skills prevent them from truly taking advantage of this opportunity. The AHP results suggest that in efforts to empower coastal communities to diversify processed tuna, the dominant factor is coaching and education with the largest weight of 0.466, then the conservation and sustainability factor is the second factor with a value of 0.247, then the infrastructure and market access factor with a weight of 0.166 and finally the availability of resources with a weight of 0.121. Comprehensive policy implications must consider these four factors holistically, with the main priority on coaching and education, followed by environmental conservation, infrastructure development, and ensuring the availability of resources. Through targeted policies, it is hoped that coastal communities can improve their skills and competitiveness, and be able to create processed tuna products with high added value and sustainable.

Mercury monitoring in farmed Pacific bluefin tuna (Thunnus orientalis) using liquid asymmetric-electrode plasma optical emission spectroscopy: Ventricle tissue as a potential indicator

Tuna muscle is known to contain high levels of mercury, necessitating the monitoring of mercury concentrations in farmed fish at production sites. There is currently no straightforward in on-site method for testing whether the mercury levels in farmed tuna exceed regulatory limits. This study investigated the potential application of liquid asymmetric-electrode plasma optical emission spectroscopy (LAEP-OES) to estimate mercury concentrations in the tissues of cultured Pacific bluefin tuna at aquaculture farms. No significant differences in mercury concentrations were observed between the ventricle tissue and biopsied tissue from tuna bleeding site (TTBS), which can be harvested without reducing the market value of farmed tuna (Hg concentration of the ventricle tissue and the TTBS, median: 0.41 and 0.40 mg/kg, respectively). In addition, the relationship between mercury concentrations in the ventricle tissue and in the edible portions of three tuna fish was examined. The findings showed that total mercury level in the edible tissues varied, with the ratio of the mercury level in edible tissues to that in the ventricle ranging from 0.39 to 1.08. A positive correlation was observed between the average total mercury levels in edible tissues and ventricle tissue. These results suggest that determining the total mercury level in the ventricle, which is typically discarded at processing sites, may serve as a convenient proxy for quality control and monitoring purposes using the LAEP-OES method. However, larger sample sizes are needed to validate the proposed approach more robustly.

The Small-Scale Tuna Fishery in Leyte, Philippines: Fishing Gears, Practices, Catch Rate and Composition

The Philippines is a significant tuna producer globally and ranks among the major tuna-fishing nations. One of the various areas where tuna fishery occurs in the country is the province of Leyte in Eastern Visayas. However, available information on the fishery in the province is limited. Thus, this study aimed to provide comprehensive information on the current status of small-scale tuna fishery in selected municipalities in Leyte, particularly on the types of fishing gears used, practices employed by fishers, and the catch rate and composition of the gears. This study used a purposive sampling method, and data were gathered through face-to-face interviews with a total of 68 small-scale tuna fishers, and actual catch sampling. The respondents’ involvement in tuna fishing ranged from 3 to 60 years with a mean of 26±13 years. A total of three different types of hook and line gear used in the fishery were recorded, namely: 1) paired troll line, 2) single troll line, and 3) single hook and line with float. The paired troll line is the most commonly used gear among tuna fishers. The mean catch per unit effort varies depending on the fishing gear type. The catch composition of the three gears based on the actual catch sampling was comprised of four tuna species including longtail tuna Thunnus tonggol (50.48%), big-eye tuna T. obesus (21.90%), eastern little tuna Euthynnus affinis (18.10%), frigate tuna Auxis thazard (3.81%), and two other species including Megalapis cordyla (3.81%) and Scomberomorus commerson (1.90%). The current major issues in the fishery include catch seasonality, illegal fishing, and border restriction.

Utilisation of gambir tannins as a Freshness Indicator in smart food packaging

Gambir is one of the extracts from the Uncaria gambir plant that is segmented, dried, and then can be molded into various shapes. The components used for gambir extract come from the leaves and twigs of the plant, which contain high amounts of catechins and tannins. These tannins can be used as medicine and dyes and are also used in industry as wood adhesives. This tannin dye made from gambir can be used as a colour indicator that shows the condition of foodstuffs on an intelligent packaging indicator. The colour indicators used from tannins can provide information on discolourations that occur in foodstuffs; these changes are used as a means of detecting and indicating the shelf life of foodstuffs and whether these foods are still safe to eat. This study investigates the use of gambir tannin in an indicator strip by analysis of FTIR spectroscopy, pH, storage testing, and colour measurement using the RGB method. This was applied to tuna fish fillet foodstuffs which were evaluated through Total Volatile Base Nitrogen (TVBN) and pH analysis. This study showed that the total tannins were 27.52 % and phenols were 178.7 mg GAE/g. For Colour indicators with tannin concentrations of 1 %, 3 % and 5 %, there is a bend of the aromatic CC functional group at wave number 1521.84 cm-1, which indicates the presence of tannin compounds in the colour indicator. After dipping the strip indicators into solutions with pHs of 3, 5, 7, and 9, the indicators darken in colour to show a higher pH. Indicators with a tannin concentration of 1 % are better because they undergo discolouration and are more stable than indicators with tannin concentrations of 3 % and 5 %. Storage of fish fillets for five days at a temperature of 5–7 °C showed that the pH value decreased while the TVBN level increased, and the colour indicator became darker.

Implementation of GMP and SSOP in Making Fish Chili Sauce

Chili Sauce is a famous food. Fish Chili Sauce made contains 10% fermented Tuna fish meat, to give a different taste. To get the quality of Fish Chili Sauce. The purpose of this study is to be able to apply the principles of Good Manufacturing Practice (GMP) and Sanitation Standard Operational Procedures (SSOP) in making fish Chili sauce. This study uses a Descriptive Method to see the Implementation of GMP and SSOP in Making Fish Chili Sauce. In each Principle of GMP and SSOP implementation, Objective and Subjective Microbial (TPC) and E.coli analysis will be carried out. The results of the study showed that the nutritional value of Fish Chili Sauce is Water 44.735%, Protein 4.595%, Fat 25.72%, Carbohydrate 4.1%, Ash 20.85%, pH 4.50 and TPC 2.4 x 10 4. With an Average Organoleptic Value of Taste 6.1 (Like), Aroma 6.5 (Like), Color 5.8 (Like), Texture and Overall Acceptance 6.2 (Like). The results of the Escherichia coli test from raw materials, equipment and also Fish Sambal showed Qualify.

MUTU ORGANOLEPTIK DAN KOMPOSISI GIZI SOSIS TETELAN IKAN TUNA (Thunnus sp)

Tuna swallow contains high protein but has the disadvantage of smelling fishy. Tuna swallow is usually sold cheaply and is underutilized, while its potential is quite large. Therefore it is necessary to diversify processed fishery products to increase the utilization or added value of tuna fish, one of which is the manufacture of fish sausages. The purpose of this study was to determine the organoleptic quality and nutritional composition of tuna fish sausage (Thunnus sp).The study used an experimental method with three different concentrations of tuna fillet meat to obtain the physical form and good quality content of tuna fish sausage based on organoleptic test results and nutritional content test results using the proximate analysis method. Based on the results of the research on the best organoleptic quality, there was treatment A1 with an appearance value of 7.6, smell of 7.1, taste of 7.4 and texture of 7.0. While the best proximate value or nutritional composition is found in A3 with a value of 19.9% ​​protein content, 1.4% fat content, 7.2% carbohydrate content, 70.4% water content and 0.8% ash content.

Feasibility Analysis for Predicting Indian Ocean Bigeye Tuna (Thunnus obesus) Fishing Grounds Based on Temporal Characteristics of FY-3 Microwave Radiation Imager Data

Efficient and accurate fishery forecasting is of great significance in ensuring the efficiency of fishery operations. This paper proposes a fishery forecasting method using a brightness temperature (TB) time series spatial feature extraction and fusion model. Using Indian Ocean bigeye tuna fishery data from 2009 to 2021 as a reference, this paper discusses the feasibility of fishery forecasting using FY-3 Microwave Radiation Imager (MWRI) Level 1 TB data. For this paper, we designed a deep learning network model for radiometer TB time series feature extraction (TimeTB-FishNet) based on the Convolutional Neural Network (CNN), Gated Recurrent Unit (GRU), and Attention mechanism. After expanding the dimensions of TB features, the model uses them together with spatiotemporal feature factors (year, month, longitude, and latitude) as features. By adding the GRU and Attention to the CNN, the CNN-GRU-Attention model architecture is established and can extract deep time series spatial features from the data to achieve the best results. In the model validation experiments, the TimeTB-FishNet model performed optimally, with a coefficient of determination (R2) of 0.6643. In the generalization experiments, the R2 also reached 0.6261, with a root mean square error (RMSE) of 46.6031 kg/1000 hook. When the sea surface height (SSH) was introduced, the R2 further reached 0.6463, with a lower RMSE of 45.1318 kg/1000 hook. The experimental results show that the proposed method and model are feasible and effective. The proposed model can directly use enhanced radiometer TB data without relying on lagging ocean environmental product data, performing deep temporal and spatial feature extraction for fishery forecasting. This method can provide a reference for the fishing of bigeye tuna in the Indian Ocean.

Increase Hemoglobin (Hb) Levels in Teenage Girls

This objective of study employeed the effectiveness before and after providing pureed moringa leaf of Striped Catfish dumplings and tuna pureed leaves dumplings on increasing Hemoglobin (Hb) levels in teenagers in Nelayan Indah District. The research method used a pre-experimental design method with a pretest-posttest control group design. The intervention group was given treatment for 30 days. The population was all teenage girls who experienced mild anemia, namely 21 teenage girls. The data analysis technique was bivariate analysis to determine the analysis of the effect of giving Striped Catfish dumpling puree from moringa leaves and tuna fish puree from chayote leaves in increasing hemoglobin (Hb) levels in teenage girls using the one way ANOVA statistical test. The results of the statistical test used a paired simple T-test obtained a p-value of 0.000<0.05 which shows that there was an increase in the hemoglobin (Hb) levels of teenage girls in the Fisherman Indah sub-district when given the pureed moringa leaf fish dumplings and given the tuna pureed pumpkin leaf pureed fish dumplings equally. -The average hemoglobin level for teenage girls has a difference of 1.5429 gram/dl. Meanwhile, giving tuna dumplings with an average hemoglobin level had a difference of 1.1286 grams/dl between before and after the intervention. For this reason, it is recommended that young women consume good foods such as processed Fish Striped Catfish Puree Moringa Leaves dumplings and processed Tuna Fish Dumpling Puree Chayote Leaves to increase Hemoglobin levels

Optimizing Tuna Fish Quality through a Science-Based Sustainable Partnership Approach and Ecological Management in Boneoge Village, Central Sulawesi

The potential of tuna resources is quite large, but to achieve export quality, fishermen and Fish Processing Units (UPI) must implement a strict quality assurance system, and government involvement is needed so that the tuna export process from Boneoge Village can be realized soon. This study aims to analyze partnership strategies that can be applied to improve the quality of tuna in Boneoge Village. Data collection method was carried out by purposive sampling. Basically, the data in this study were obtained and collected through triangulation (multi-method). The respondents selected in this study were ten people consisting of four fishermen, Quality Control and employees of the Fish Processing Unit (UPI), four related institutions. The data analysis used was SWOT analysis followed by QSPM analysis. Based on the SWOT analysis, there are 7 strategies that can improve the quality of partnership-based tuna in Boneoge Village, Donggala Regency. Based on the QSPM analysis, the first priority strategy is the strategy of Building Partnerships through Empowerment between the Government, UPI and Fishermen with a TAS value of 7.24, the second priority is Training in Fishermen and UPI Skills and Bureaucratic Efficiency with a TAS value of 6.27, the third priority is Improving Product Quality and Safety with a TAS value of 5.89.

Comprehensive analysis of nutritive and toxic metal contents in canned tuna: Implications for safety and consumer health

Ca, Mg, K, Na, Fe, Cu, Mn, Zn, Ni, Cr, As, Cd, Pb and Hg levels of canned tuna fish marketed in Turkey were determined by inductively coupled plasma mass spectrometry. Ca content ranged from 80 to 2930 mg/kg, Mg from 900 to 1910 mg/kg, Na from 5930 to 12130 mg/kg, and K from 6930 to 44340 mg/kg. Fe (4.73–27.34 mg/kg), Cu (0.21 and 0.98 mg/kg), Mn (0.12–0.44 mg/kg), Zn (32–45 mg/kg), Ni (0.88–2.06 mg/kg) and Cr (0.03–0.11 mg/kg) contents of the canned foods did not exceed the provisional tolerable weekly intake limit. Cd was detected in two groups (C4=0.02 mg/kg, C18=0.15 mg/kg), while Pb was found in one group (C10=0.48 mg/kg). As content ranged from 0.27 to 1.75 mg/kg in all groups. Most of the tuna cans contained Hg between 0.046 and 0.099 mg/kg, but the highest concentration was found in sample C4 (0.81 mg/kg). Based on the increased lifetime cancer risk findings, the consumption limits of Group 4 and Group 14 should be limited to around 60 g/week (less for children). As a result of the findings that were obtained from this study careful observations should be followed up for the safer consumption of canned tuna.

PKM Increasing the Economic Value of Tuna Fish ‘Trips’ Waste in Pedungan Village, Denpasar

By Providing Added Value from waste is a very important thing to implement in developing the Blue Economy. In this PkM Activity, waste handling is carried out in stages and sustainably, until the Zero Waste principle is achieved. The Community Service activity carried out at the IRT owned by Ni Wayan Sarimi (Partnersa) turned Tuna Fish Skin waste into a food product in the form of fish skin crackers. The meat part is used as Fish Abon. The method of Community Service is using the interview method and participation in the practice of making tuna fish floss. The purpose of this PkM is to provide solutions to Partners to make meat from waste Tuna fish skin into Tuna fish floss. . This PkM activity has been published in Print and Electronic Media. Activity videos are uploaded on YouTube.

Development of molecularly imprinted polymer-based dispersive micro-solid-phase extraction for the selective extraction of histamine from canned tuna fish samples prior to its determination by GC–FID

Development of molecularly imprinted polymer-based dispersive micro-solid-phase extraction for the selective extraction of histamine from canned tuna fish samples prior to its determination by GC–FID