PELATIHAN DAN IMPLEMENTASI PLTS DALAM MENANGGULANGI HAMA BURUNG PENCURI IKAN UNTUK PENINGKATAN PRODUKSI IKAN NILA

Bird pests and humans thieving have disturbance the "Mina Yukti" fish cultivator group, in a day the fish can be eaten up to 4 herons, this is known by the presence of fish bones scattered on near of the pond. This problem affect to the food security of this group, especially in this pandemic crisis era. To overcome this problem is to install lighting installations, because the location of the pool is far from the PLN installation, solar panel is used to supply the lighting consumption. This activity is packaged in the form of training and installation of PLTS and lighting installations. The training is carried out interactively by according to the principles of andragogy, so that the output of theoretical and practical training is to produce competent personnel and the final construction of solar panel and Lighting Installations. The solar panel installed with a capacity of 100WP, the problems of this group can be solved. In the installation of this solar panel installation does not use an inverter, to increase the efficiency of PLTS. The training activities, construction and installation of PLTS and lighting installations were carried out by 90 people consisting of lecturers, education staff, students and members of the fish cultivator group “Mina Yukti.

Modification of Fishbone-Based Hydroxyapatite with MnFe2O4 for Efficient Adsorption of Cd(II) and Ni(II) from Aqueous Solution

Due to their toxicity, Cd(II) and Ni(II) ions in the environment are severe. The hydroxyapatite composite was improved with magnetic MnFe2O4 to remove Cd(II) and Ni(II) ions from an aqueous solution. Hydroxyapatite was extracted from Snakehead (Channa striata) fish bones via alkaline-heat treatment. The hydroxyapatite/MnFe2O4 composite performance was analyzed through XRD, FTIR, SEM-EDS, BET analysis, and VSM, and the results reveal that the hydroxyapatite/MnFe2O4 composite shows good magnetic properties of 21.95 emu/g. The kinetics evaluation confirmed that the pseudo-second-order kinetics model was more suitable to describe the adsorption of Cd(II) and Ni(II) ions by hydroxyapatite/MnFe2O4 composite from the solution. The Langmuir isotherm model was suitable to describe the adsorption process of the Cd(II) and Ni(II) ions, where the adsorption capacities for Cd(II) and Ni(II) are 54.3 and 47.4 mg/g, respectively. Desorption of Cd(II) and Ni(II) ions from hydroxyapatite/MnFe2O4 composite using NaCl as the eluent was more effective than EDTA. The findings of this study indicate that hydroxyapatite/MnFe2O4 can reduce Cd(II) and Ni(II) ions in wastewater so that it can recover natural resources.

Valorisation of Fish Bones: Effects of Preservation by Formic Acid on AL-extractable calcium, Phosphorus, Magnesium, and Potassium

Fishbones contain significant amounts of plant nutrients. Fish residues may be preserved by acidification to pH < 4, which may affect the extractability and plant availability of nutrients when applied as fertilisers. Grinded bone material from cod ( Gadus morhua ) heads was mixed with formic acid to investigate if acidification would increase the concentrations of ammonium acetate-lactate (AL)-extractable nutrients. Two degrees of fineness of fishbones (coarse 2-4 mm; fine < 0.71 mm) were compared at pH 3.0 and 4.0 plus a water control in a laboratory study over 55 days. Samples for extraction of AL-soluble P, Ca, Mg and K were taken on day 2, 15, 34 and 55. Whereas acidification clearly increased the concentrations of AL-extractable calcium (Ca-AL) and magnesium (Mg-AL), extractable phosphorus (P-AL) was only significantly increased in finely grinded bones at pH 3. After 34 days, 6% of the total content of P was extracted by AL in fine fishbones at pH 3. Without acidification about 1% of the P was extracted, possibly from phospholipids. This P-AL concentration was well above P-AL extracted from acidified coarse fishbones and from fine fishbones acidified to pH 4. With acidification, about 30% of total Ca and 10% of total Mg were extracted by AL, and the Ca-AL and Mg-AL concentrations were closely correlated. The reason for lower P-AL in coarse fishbones at pH 3 and 4, and fine fishbones at pH 4 than in water controls may be a precipitation of apatite from phospholipids and dissolved calcium.

An Unusual Etiology of Submandibular Sialadenitis, Migration of an Ingested Fish Bone to the Submandibular Gland: A Case Report

Recurrent sialadenitis of submandibular gland can have multiple causes, one of the rare being foreign bodies. Motor vehicle accidents, assaults, bullet wounds and iatrogenic surgical fault are the most common causes of traumatic foreign bodies. Fish bone is one of the most common foreign bodies that gets lodged in the upper digestive tract, often located in the tonsil, base of tongue, epiglottis, pyriform fossa and esophagus, where it may be easily identified on routine inspection and removed. The forcible swallowing of food such as rice balls after ingesting fish bones by mistake may lead to the migration of the fish bone from the pharynx, throat or esophagus to the surrounding tissues. Migration most commonly occurs to the soft tissues of the neck, even to the thyroid gland, but migration to the submandibular gland has rarely been reported. Here, we present a case of submandibular sialadenitis due to unusual migration of ingested fish bone to submandibular gland. Foreign body ingestion may cause a series of complications and endanger a patient's life. Cases require high awareness and attentiveness on the part of the first physician to diagnose and manage the condition and appropriate health education should be imparted to the patient. Faridpur Med. Coll. J. 2021;16(1):55-57

Characteristics of fish-bone foreign bodies in the upper aero-digestive tract: The importance of identifying the species of fish

Background Fish bones are common foreign bodies in the upper aero-digestive tract, but their clinical features in relation to fish species have not been confirmed. We aimed to clarify the clinical characteristics of fish-bone foreign bodies and their location and removal methods depending on the fish species. Study design Retrospective, observational, monocentric study. Methods From October 2015 to May 2020, 368 patients visited the Department of Otolaryngology-Head and Neck Surgery at Tohoku University Hospital complaining of dysphagia, sore throat, or pharyngeal discomfort after eating fish. We analyzed the patients’ sex and age distribution, foreign-body location, type of the fish, and the techniques used for removing the foreign body. Results Fish bones were confirmed in the upper aero-digestive tract in 270 cases (73.4%), of which 236 (87.4%) involved fish-bone foreign bodies in the mesopharynx. The most frequently involved site was the palatine tonsil (n = 170). Eel was the most frequently observed fish species (n = 39), followed by mackerel (n = 33), salmon (n = 33), horse mackerel (n = 30), and flounder (n = 30). Among the 240 cases in which the bones did not spontaneously dislocate, 109 (45.4%) were treated by endoscopic removal (103 cases) or surgery (6 cases). In pediatric cases (<12 years old), almost all fish bones were found in the mesopharynx (138/139, 99.3%), and 31 cases (22.3%) required endoscopic removal. Flounder fish bones were often lodged in the hypopharynx and esophagus (9/30, 30%), hindering spontaneous dislocation and frequently necessitating endoscopic or surgical removal (19/29, 65.5%). Conclusion The characteristics of fish-bone foreign bodies differed depending on the fish species. Flounder bones were often stuck in the hypopharynx and esophagus and were likely to require more invasive removal methods. Confirming the species of the fish could facilitate appropriate diagnosis and treatment of fish-bone foreign bodies.

Pangasius Bone Powder (Definition, Production, Analysis Physicochemical Characteristics and Potency): A Review

Fish bones are a wasted and unused product though it contains high minerals, especially calcium and phosphorus, so that fish bones can be used as raw materials for making bone powder. The manufacture of pangasius bone powder generally goes through a heating process that aims to remove fat from the bones and can denature the protein. The physicochemical characteristics of pangasius bone powder greatly determine the use of the product and are related to the quality of the product. The physicochemical characteristics consisted of yield, bulk density, water content, ash content, fat content, protein content. The main potential of pangasius bone powder is as a source of calcium and phosphorus in meeting mineral needs for the body.

Fishbone Flour (Definition, Analysis of Quality Characteristics, Manufacture): A Review

Fish bones are the largest contributor of waste from the fish processing industry which has not been used optimally. Fish bones have a high calcium content so they can be used as raw material for fish bone flour. This article aims to explain the use of fish bone into fish bone flour, how to process it, and the quality of fish bone flour by physicochemical testing. Fish bone flour can be obtained by extraction using water, alkaline solution and acid solution. The quality characteristics of bone flour can be seen from the water content, ash content, protein content and fat content. Based on several studies, the drying time and temperature affect the physicochemical characteristics of the resulting product.

Two cases of gastric penetration by fish bones with differing courses

ABSTRACT Most foreign bodies swallowed accidentally are naturally excreted. Gastric penetration by a fish bone is rare due to anatomical and physiological features such as the thick stomach wall, wide lumen and gastric acid. The most common penetration site is the antral region. The clinical course of fish bone penetration of the gastric antrum may differ depending on the direction of penetration. In this report, two cases of gastric perforation by fish bones that followed different courses are presented. One case was treated conservatively with antibiotics alone, and another case was considered for surgery, due to increased hematoma and penetration of the fish bone into the pancreas. However, the patient’s comorbidities were so severe that surgery was not possible, resulting in meticulous follow-up. Diagnostic imaging was important in these cases.