Deskripsi Daging Rana Arfaki (Anura; Ranidae) yang Dikonsumsi Masyarakat Moiley di Pegunungan Arfak

In Papua, especially in the Arfak Mountains, one of wild animals that commonly used as a non-animal protein source is frogs. Although it has been consumed by local people for generations, there is no representative information on the characteristics of Arfak frog meat. This study aims to determine the body weight and weight of carcass of Arfak frogs (Rana arfaki) comsumed by the Moiley communtiies in the Arfak Mountains. In addition, this study also attempts to reveal the physical quality and processing techniques of consumed Arfak forg meat. We used descriptive method with observation techniques in the field. The results show that an average body weight of Arfak frogs consumed in Mbenti is 2.53 ± 0.81gr, with an average of carcass percentage 46.77% and non-carcass percentage 53.23%. The physical quality of the meat is, fresh and looks intact, the color of flesh and muscles is white to yellowish white, has a distinctive aroma, and elastic texture as well as strong muscles. The pH value of fresh meat is an average of 7.03. Various meat processing techniques are practiced including fried, stir-fry, grilled and smoked, and pickling/smoked is more preffered bacuse it is easy and the meat can keep longer as a source of food for household animal protein. Keywords: Arfak; Cosnsumption; Meat; Quality; Rana arfaki Abstrak Di Papua khususnya di Pegunungan Arfak, salah satu jenis satwa yang dimanfaatkan masyarakat sebagai sumber protein hewani non-ternak adalah katak. Meskipun telah dikonsumsi oleh masyarakat lokal secara turun temurun, sampai saat ini belum tersedia informasi yang representatif tentang karakteristik daging katak Arfak. Tujuan dari penelitian ini adalah untuk mengetahui bobot badan dan berat karkas katak Arfak (Rana arfaki) yang dikonsumsi masyarakar Moiley di Pegunungan Arfak. Selain itu juga penelitian ini bertujuan untuk mengetahui kualitas fisik dan teknik pengolahan daging katak Arfak yang dikonsumsi. Metode yang digunakan adalah metode deskriptif dengan teknik observasi atau pengamatan langsung di lapangan. Rataan bobot badan katak Arfak (Rana arfaki) yang dikonsumsi oleh masyarakat di Mbenti yaitu 2,53 ± 0,81gr dengan rataan persentase karkas yaitu 46,77% dan persentase non-karkasnya sebesar 53,23%. Kualitas fisik daging katak Arfak yaitu memiliki karakteristik segar dan tampak utuh, warna daging dan otot putih hingga putih kekuningan, memiliki aroma khas, dengan tekstur elastis serta memiliki otot kuat. Sedangkan nilai pH daging katak Arfak segar yang dikonsumsi oleh masyarakat yaitu rata-rata adalah 7,03. Teknik pengolahan daging yang dilakukan oleh masyarakat beragam antara lain goreng, tumis, bakar dan asap. Cara asar/asap lebih disenangi karena mudah dilakukan dan dapat memperpanjang masa simpan daging sebagai cadangan sumber pangan protein hewani rumah tangga. Kata kunci: Arfak; Daging; Konsumsi; Kualitas; Rana arfaki

The different encapsulants of lileum leaves (Clerodendrum Minahassae L) and Avocado Seed (Persea Americana Mill) extraction on Physical Quality and Microscopic Structure

This research aimed to examine the differences encapsulant of leilem leaves and avocado seed (1 : 1) using a microwave oven to the microcapsule product physical quality and microscopic structure. The method was used laboratory experimental with 5 different encapsulants consist of gum arab (A1), whey (A2), chitosan (A3), maltodextrin (A4) and zeolit (A5) with 4 replications in every treatment, respectively. The Variables observed in this research consist of physical quality (dry matter, density, yield, solubility of solids) and microscopic structure. The data of physical quality was evaluate the size and structure, then the microscopic structure was analysed by analysis of variance (ANOVA) of the experiment using Completely Randomized Design (CRD). The results showed that the use of different encapsulates showed a significant (P < 0.05) effect on density and the solubility of solids in the product but it were not significant effect on dry matter and yield. Furthermore, different encapsulants also showed significantly different on the microscopic structure. Therefore, it can be concluded that the encapsulation process of the mixed extract of leilem leaves and avocado seeds using a microwave oven and chitosan encapsulation can produce the best physical quality and microscopic structure.

Effect of forage Legetan (Synedrella nodiflora) fresh and hay on the physical quality of forage pellets

This study aimed to determine the effect of raw materials Legetan in the form of fresh and hay on the physical quality of pellets. Legetan (Synedrella nodiflora) was used as main ingredient, in the form of fresh and hay. The research method used a Randomized Completely Block Design (RCBD). Then, if there was a significant difference, it will be analyzed further using Duncan multiple range test (DMRT). The treatments consisted of P1 = 10% rice bran + 90% fresh Legetan; P2 = 20% rice bran + 80% fresh Legetan; P3 = 10% rice bran + 90% hay Legetan; P4 = 20% rice bran + 80% hay Legetan. The variables measured were rendement, color, texture, and price. The results showed that the utilization of Legetan forage as raw material, both hay and fresh with the proportions of rice bran either 10:90 or 20:80, had no significant effect on the physical quality of Legetan forage pellets. However, the higher the portions of Legetan forage in the forage pellets, the more affordable the pellet price will be.

Effect of using fresh palm oil and used palm oil as a fatliquoring agent to the physical quality of tilapia fish skin in vegetable tannery

Fish skin is one of the alternative materials to replace the common animal skin that used in the leather tannery. This research was carried out by vegetable tanning to the tilapia fish skin using selected concentration of fresh palm oil and used palm oil. The study aims to find out the physical quality of leather through the using of fresh and used palm oil as fatliquoring agent in the vegetable tannery process. The same concentration of fresh palm oil (5%) and used palm oil (5%) were used in this study. The parameter of tensile strength, elongation, and shrinkage temperature as physical quality was observed in triplicates. Based on the results, tensile strength and leather elongation were significantly increased, while the shrinkage temperature was not significantly affected. In conclusion, the addition of palm oil caused the increasing tilapia fish skin quality that can be used for commercial products, and it became the alternative material that could be use in vegetable tannery processing.

Physical and chemical quality of forage feed pellets with different types of materials and compositions

The aimed of this study was to determine the physical (durability) and chemical quality of forage feed pellets with different raw materials and compositions. This study used two (2) weed raw materials with different forms, namely in the form of fresh and in the form of hay that has been milled. Each raw material was formulated and processed in the same way, a mixture of forage and rice bran, consisted of 90%: 20% and 80%: 20% (calculated based on dry matter, mixed in as fed), pelleted, then dried in the sunshine. Each treatment has three (3) replications. Dried forage pellets were tested with the PDI (pellet durability index) test and chemical quality test (proximate) in the Forage and Pasture Science Laboratory. The experimental design used a Randomized Completely Block Design where there were blocks of material types and blocks of material composition. The variables observed were physical quality in the form of PDI and chemical quality in the form of dry matter (DM), organic matter (OM), crude protein (CP), crude fibre (CF), extract ether (EE) and nitrogen-free extract (NFE). The data were statistically analysed with program SPSS version 26. If there was a significant difference, it was continued with the least significant different (LSD) test. The conclusion of this study was that the physical quality of forage pellets (PDI number) made from weed (Synedrella nodiflora) or Legetan was affected by composition, but neither hay nor fresh weed material affected its quality. The type of raw material in the form of hay and fresh affects the chemical quality of forage pellets in the form of DM, OM, CP, CF and NFE, but does not affect EE. EE was influenced by the composition of the pellets

Pengaruh Trietanolamin Dan Asam Stearat Terhadap Mutu Fisik Dan Stabilitas Mekanik Krim Sari Buah Tomat

Tomatoes contain lycopene which is an antioxidant. Antioxidant preparations can be made in the form of a cream with components of an oil phase, a water phase and an emulsifier. Emulsifiers that can be used are triethanolamine (TEA) and stearic acid. This study aims to determine the effect of triethanolamine and stearic acid as emulsifiers on the physical quality and mechanical stability of tomatoes extract cream. The use of triethanolamine and stearic acid with a ratio of 2%:5%; 3%:10%; 4%:15%. The test are the physical characteristics of tomatoes extract cream included organoleptic, homogeneity, cream type, pH, viscosity, spreadability, adhesion, protection and mechanical stability using the centrifugation method. The results of the phytochemical screening of tomatoes extract were positive for triterpenoids. The test results of the three cream formulas are odorless, semi-solid form, light orange to white color, homogeneous, cream type M/A, pH 5.25 - 6.26; viscosity 5,376 cP - 14,370 cP, spreadability 4 - 5,067 cm, adhesion 4 - 11.6 seconds, protection power 2 - 5.2 seconds. The three cream formulas did not undergo phase separation. The higher concentration of TEA and stearic acid had an effect on viscosity, pH value, adhesion, dispersibility and protection, but had no effect on organoleptic, homogeneity, cream type, and stability. tomatoes extract cream with a concentration of TEA:stearic acid 2%:5% gave the best physical quality.