The aim of this study was to determine the best concentration of E. cottonii seaweed porridge in the formulation of peel off gel masks. The main materials used in this study were <em>E. cottonii</em> and other basic substances of peel off gel mask. The analytical methods used were the total microbial and antioxidant test on the E. cottonii slurry preparation. Mask preparations were analyzed for physical stability, pH, duration of preparation, drying, viscosity and homogeneity. The experimental design used was a Completely Randomized with four treatments by adding <em>E.cottonii</em> porridge 0%, 10%, 15% and 20% respectively with two replications.The results showed that the best peel off gel mask was formulation with the addition 20% of E.cottonii. Microbes were not found in <em>E. cottonii</em> porridge. The antioxidant activity of <em>E. cottonii</em> porridge had IC50 value of 137.35±0.35 μg / mL. Consumer acceptance of products through sensory testing in the category of likes. The peel off gel mask has good physical stability, proven by no changes in color, odor as well as gel texture. The pH value of the preparation of peel off gel mask is in line with SNI and pH balance of normal human skin. The best viscosity value of peel off gel mask is 14,003 cps. The time needed for the mask to dry for an average of 25 minutes and homogeneity is characterized by the absence of secondary particle aggregation.
AbstrakMasyarakat pesisir kendari memiliki kepercayaan mengkonsumsi cacing laut sebagai obat tradisional, karena beberapa senyawa kimia yang ada pada cacing laut diduga memiliki khasiat tersebut. Penelitian ini bertujuan untuk menentukan kandungan asam amino, asam lemak dan mineral dari cacing laut (Siphonosoma australe-australe) yang berasal dari Perairan Toronipa Provinsi Sulawesi Tenggara. Kandungan asam amino esensial tertinggi terdapat pada arginin yaitu 3,04% untuk cacing laut segar dan hasil freeze dry yaitu 5,52% dan asam amino non-esensial yang tertinggi terdapat pada asam glutamat yaitu 6,53% pada cacing laut segar dan hasil freeze dry yaitu 8,53%. Kandungan asam lemak jenuh (SFA) tertinggi yakni asam palmitat yaitu 1,96% pada cacing laut segar dan 2,64 pada hasil freeze dry. Kandungan asam lemak tidak jenuh MUFA tertinggi cacing laut segar yakni asam palmitoleat yaitu 0,31% dan hasil freeze dry yaitu 0,27%. Kandungan asam lemak tidak jenuh PUFA tertinggi yakni asam arakidonat pada cacing laut segar yaitu 2,80% dan asam oleat yaitu 1,97% pada hasil freeze dry. Kandungan mineral tertinggi adalah natrium pada cacing laut basah (43.700 mg/kg) dan pada hasil freeze dry (127.334 mg/kg). Kata kunci: asam glutamat, asam palmitat, cacing kacang, Sulawesi Tenggara AbstractThe coastal communities of Kendari believe in sea worm as traditional drug to cure a wound, thus some chemical compounds exist in sea worms are suspected to have the compound. The aims of this study were to determine chemical compound, amino acid, fatty acid content, and mineral of flesh sea worm (Siphonosoma australe-australe) from Toronipa Aquatic Province Sulawesi Southeast. The higest essential amino acid content on fresh sea worm was arginin (3.04%), and freeze dry was 5.52%. The higest non-essential amino acid content on fresh sea worm and freeze dry were glutamic acid 6.53% and 8.53% for product resulted by freeze dry. Palmitic acid was the higest saturated fatty acid (SF) content of fresh sea worm and freeze dry with the value 1.96% and 2.64%, respectively. The higest MUFA fatty acid content of fresh sea worm and freeze dry were plamitoleat acid 0.31% and 0.27%. The highest poly unsaturated fatty acid (PUFA) of fresh sea worm and freeze dry were aracidonat 2.80% and oleat acid 1.97%. The highest mineral content of wet sea worm and frezee dry were Natrium 43,700 mg/kg and 127,334 mg/kg.
Abstract. Purnama MF, Sirza LOMJ, Sari SF, Salwiyah, Haslianti, Abdullah, Suwarjoyowirayatno, Findra MN, Nurhikma, Agriansyah A, Hidayat H, Syukur, Anwar K. 2022. Diversity report of freshwater gastropods in Buton Island, Indonesia. Biodiversitas 23: 1938-1949. This study was located in Buton Island consisted of 5 administrative districts/cities (Baubau City, Buton District, South Buton District, Muna District and North Buton District) and was conducted for 1 year (August 2019-August 2020). The output is to reveal the potential richness of the biodiversity of freshwater gastropods as a first step to optimize the utilization of freshwater gastropod resources in the Buton Islands. Determination of sampling location for gastropods was carried out by purposive sampling method and the selection of gastropod samples using simple random sampling method at a predetermined location based on the presence of gastropods. Gastropod samples (epifauna/infauna) were collected manually without special fishing gear with gloves, paralone pipes (3.5 inches), and filter (1 mm). The gastropods found in Buton Island consist of 18 genera and 40 species. Freshwater gastropods spread over 8 families, namely Cyclophoridae, Planorbidae, Lymnaeidae and Thiaridae. Among the species, there are several invasive alien species (IAS) such as Tarebia granifera, Melanoides tuberculata and Achatina fulica. These three species always dominate the habitat space where they are found. Most gastropod communities in 5 districts/cities live in fast-flowing rivers with rock, gravel and sand substrates. Only a few of them are found in artificial inland waters such as rice fields, embankments, dams and drainage. This study became a first step to optimize the utilization of gastropod resources and sustainable management, especially related to the conservation of native species from the threat of IAS.
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.
Penelitian ini bertujuan untuk meningkatkan kualitas fisik produk sosis ikan dengan penambahan daging ayam broiler sehingga memberikan tekstur yang lebih baik pada sosis ikan dan mampu meningkatkan penerimaan sosis ikan pada konsumen. Pada penelitian ini dilakukan 2 perlakuan yakni sosis ikan 100% dan sosis ikan dengan penambahan daging ayam 30% kemudian dilakukan uji mutu sensori menggunakan uji kesukaan skala 1-7 dan uji proksimat. Sosis ikan gulamah 100% menghasilkan kenampakan (5,17%), aroma dan tekstur (5,00%), dan rasa (5,40%) dengan protein sebesar (6,67%) sedangkan sosis ikan dengan penambahan daging ayam (30%) memberikan kenampakan (4,90%), aroma (5,33%) tekstur (4,83), dan rasa (5,80%) dengan protein sebesar (7,45%).
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