HighlightKnowing the amount of daily calcium neededKnowing utilization of fish bone meal and its processed productsAnalysis of the most preferred types of food and fish speciesAbstractGourami (Osphronemus gouramy) is a type of freshwater fish native to Indonesia that is widely preferred, and has high economic value so that production per year increases. Increasing the amount of fish production will result in an increased amount of fish bone waste. However, the processing of gourami in general is still limited to using the meat for frying, grilling, filling, and making shredded fish, while the fish bones are not widely used. Several studies have shown that fish bones that are made into flour contain high calcium. Food processing from fish bone flour can be used as an alternative to meet daily calcium intake. Several stud- ies have started to use fish bone flour to become processed food with calcium such as baked donuts, starch balls, and biscuits, but there are still many other foods from the different regions that need to utilize the fish bone as one of their ingredi- ents. The purpose of this study was to analyze the understanding of the community members, and newcomers in Purbalingga regarding the use of fish bone flour, and its processed products, calcium content, also to know their favorite snacks, and types of fish. The results of the survey analysis stated that it is necessary to use Gourami fish bone flour in making calcium dumplings and its resistance to oxygen.

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ABSTRAKTelah dilakukan penelitian mengenai formulasi mikroemulsi ekstrak terpurifikasi daun bayam merah (Amaranthus tricolor L.) sebagai suplemen antioksidan dengan tujuan untuk dapat mengetahui formula yang dapat membentuk sediaan mikroemulsi yang memenuhi stabilitas mutu fisik dan mengetahui aktivitas antioksidan (IC 50 ) dari sediaan.Ekstrak dibuat dengan metode maserasi menggunakan pelarut etanol 96% kemudian selanjutnya dilakukan purifikasi menggunakan pelarut n-heksan dan etil asetat, setelah itu diuji aktivitas antioksidannya. Formula yang dapat membentuk mikroemulsi ekstrak terpurifikasi daun bayam merah yang jernih adalah menggunakan minyak kelapa murni (VCO) sebesar 15%, tween 80 sebesar 40%, dan gliserin sebesar 35%. Uji stabilitas fisik yang dilakukan meliputi uji organoleptis, pengukuran diameter globul, uji pH, uji viskositas dan uji sentrifugasi.Uji aktivitas antioksidan dilakukan secara in-vitro menggunakan metode peredaman DPPH dan menggunakan Vitamin C sebagai kontrol positif. Data hasil pengukuran dianalisis secara statistik menggunakan metode paired samples T test.. Hasil uji aktivitas antioksidan mikroemulsi ekstrak terpurifikasi daun bayam merah menunjukkan nilai IC 50 pada hari ke-1 sebesar 1,83 ppm dan hari ke-28 sebesar 3,71 ppm. Sedangkan mikroemulsi vitamin C menunjukkan nilai IC 50 pada hari ke-1 sebesar 0,24 ppm dan hari ke-28 sebesar 2,51 ppm. Meskipun mengalami penurunan aktivitas antioksidan, namun masing-masing sediaan masuk dalam kategori antioksidan yang sangat kuat.Kata kunci : Mikroemulsi, Amaranthus tricolor L, stabilitas fisik, DPPH. ABSTRACTA research has conducted about the microemulsion formulation of purified extract of red spinach leaves (Amaranthus tricolor L.) as an antioxidant supplement with the aim to be able to know the formula to form a microemulsion which meet the physical quality stability and determine antioxidant activity (IC50) of the preparation. Extracts prepared by maceration method using ethanol 96% and then later do the purification using solvent n-hexane and ethyl acetate, after it tested its antioxidant activity. Formula to form a microemulsion purified extract of red spinach leaves clear is to use virgin coconut oil (VCO) by 15%, tween 80 for 40%, 35% glycerin and 10% distilled water. Physical stability test was conducted on the organoleptic test, measuring the diameter of globules, pH test, test and test viscosity centrifugation. Test of antioxidant activity in vitro using DPPH method and using Vitamin C as a positive control. Measurement data were statistically analyzed using paired samples T test. The test results of antioxidant activity microemulsion purified extracts of spinach leaves, red show IC50 values on day 1 was 1.83 ppm and the 28th day amounted to 3.71 ppm. While vitamin C microemulsion shows IC50 values on day 1 of 0.24 ppm and the 28th day of 2.51 ppm. Despite the decreased antioxidant activity, but each of the stocks included in the category of very powerful antioxidants.

The study aims to determine science teachers' perspective on traditional games, on the integration of traditional games as media science learning, and relevant traditional games as media in science learning. This study is descriptive qualitative research. The population is 12 public and private junior high school science teachers of Purbalingga, Banjarnegara, Banyumas, and Kebumen districts. The data collected through literature review, questionnaires, and interviews. The analysis used the qualitative data analysis technique of Milles and Huberman's which consists of data reduction, display data, and concluding. It will be concluded that the majority of science teachers define traditional games as a folk game played by local children from ancient times, mostly in groups. The teachers have a positive view on the integration of traditional games in science learning to introducing and preserving traditional games while learning so provide a direct learning experience and make it easier for children to accept. Traditional games that will be integrated as media in science learning are seen from material elements and tools or materials used so that have a relationship between characteristics and content in science learning.

The purpose of this study is to describe the onomastic perspective of Javanese society based on its social stratification. The population in this study is the Javanese people who live in the East Java Province. Social stratification based on education, religion, and residence (area). The method used in this research is descriptive qualitative method. Meanwhile, the method of data collection uses random sampling with structured interview techniques. This interview was also recorded using a cellular telephone. The results of this study indicate that in giving names to children, Javanese people who are Muslim often use Arabic and important events in the Islamic religion. Meanwhile, many Christians take from Italian and Hebrew, as well as from important events in Christian Religion. Javanese people who are highly educated often give names to their children by using the name of a hero, a combination of Javanese and Arabic, and dominant sounds [a]. Whereas the names of Javanese people with low education generally take names according to local or regional names derived from Javanese. and dominant sounds [o], [nem], [min], and [yah]. This is almost the same as the name of the Javanese people who live in the village.