Objective: This study aims to investigate the potency of matoa as a tyrosinase inhibitor and antioxidant and also to identify the chemical compounds in the most active fraction and an ethanol extract from the leaves and stem bark of matoa.Methods: The extracts were tested for their tyrosinase inhibitory activity by evaluating the formation of L-dopachrome at 490 nm. Antioxidant activity was tested using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method. The most active extract from liquid-liquid partition analysis was fractionated, and then, the assays were performed. Results:The ethanol extract of leaves and stem bark of matoa showed weak anti-tyrosinase activity (percent inhibition was 24.54±0.22% and 21.93±0.57%, respectively, final concentration 200 μg/mL), but they showed strong DPPH radical scavenging activity (IC 50 values were 6.11 μg/mL and 5.47 μg/mL, respectively). The ethyl acetate fraction was the most active fraction with an IC 50 value of 5.38 μg/mL. Ethanol extract from the leaves and stem bark of matoa and the ethyl acetate fraction contains flavonoids, tannins, saponins, triterpenoids, and glycosides. Conclusion:Matoa does not have potency as a tyrosinase inhibitor, but it has good antioxidant activity, although still lower than that of quercetin.

This study was to examine the effect of waste product of carrot (Daucus carota. L) meal on carcass quality of broiler chicken (fat and protein of meat content and pigmentation of carcass skin). The material used were one hundred and fourty four broiler chicks at 7 days old with initial body weight 181,40±11,31 gram. The experimental design was completely randomized design with 4 treatments and 6 replications, each unit consisted of 6 broilers. The treatments were T1 (control), T2 (diet with 2% carrot meal), T3 (diet with 4% carrot meal), T4 (diet with 6% carrot meal). The experiment ration was offered to the chicken for four weeks. Variable measured were fat and protein of meat content and pigmentation of carcass skin. The result showed that the treatments did not affect to meat fat content and pigmentation of carcass skin, while the carcass protein content was significantly decreased. In conclusion, the use of carrot meal in the diet can activate calcium activated neutral protease (CANP) enzymes and decreased of protein carcass.Key words : broiler, carrot meal, fat and protein carcass, carcass pigmentation. ABSTRAKPenelitian bertujuan untuk mengkaji efek pemberian tepung limbah wortel pada kualitas karkas ayam broiler (lemak dan protein karkas, pigmentasi kulit karkas). Materi yang digunakan yaitu 144 ayam broiler umur 7 hari dengan rata-rata bobot badan 181,40±11,31 gram. Rancangan percobaan adalah Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 6 ulangan, setiap ulangan terdiri dari 6 ekor broiler. Perlakuan yaitu T1 (kontrol), T2 (ransum dengan 2% tepung wortel), T3 (ransum dengan 4% tepung wortel), T4 (ransum dengan 6% tepung wortel). Penelitian dilakukan selama 4 minggu. Variabel yang diamati antara lain lemak dan protein karkas, pigmentasi kulit karkas. Hasil menunjukan perlakuan tidak memberikan pengaruh nyata pada lemak karkas dan pigmentasi kulit karkas, namun perlakuan secara nyata menurunkan protein karkas. Disimpulkan penggunaan tepung wortel dalam ransum dapat mengaktifkan enzim calcium activated neutral protease (CANP) dan menurunkan protein karkas.Kata kunci : broiler, tepung wortel, lemak dan protein karkas, pigmentasi karkas. PENDAHULUANAyam broiler merupakan salah satu ternak unggas yang secara genetik sebagai penghasil daging yang cukup potensial. Kelebihan ayam broiler yaitu pertumbuhannya yang cepat dan efisien dalam memanfaatkan pakan serta harga produk yang relatif terjangkau, membuat peminat ayam broiler cukup tinggi. Namun, pertumbuhan ayam broiler yang cepat diikuti oleh pertumbuhan lemak, dimana bobot badan yang tinggi berhubungan dengan penimbunan lemak tubuh yang tinggi pula. Kandungan lemak dalam karkas yang tinggi menjadi perhatian khusus bagi konsumen dan produsen ternak.Karkas yang baik adalah karkas yang mengandung daging dengan kadar lemak rendah dan kandungan protein tinggi, dimana hal tersebut sangat dipengaruhi oleh pakan dan pengelolaan. Selain dari

One alternative to reduce the effect of water pollution from the textile industry is to replace the use of synthetic dye with the natural one. Henna leaves are one of the natural dye sources which has lawsone, a unique substance that produces orange colour. Some commonly used conventional extractions are soxhletation and maceration. One extraction method that is tried to be developed in this study is the Ultrasound-assisted Extraction. The effects of feed ratio to solvent, time, temperature and solvent types were investigated and discussed in this study. The highest yield from the extraction of Henna leaves was found to be 17.96% which was achieved at pH 1 with the extraction time of 10 minutes, feed/solvent ratio of 0.02, and aquadest solvent. Based on the both qualitative and quantitative analysis of the extracted colour, the ultrasound assisted method was found to be more effective and efficient than the soxhletation method.

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Background: Parturition is the process of expelling the products of conception that begins with the first stage of the process. The length of the first stage can be influenced by nutritional factors. Islam is a religion that also provides a solution by consuming Ajwa dates. Therefore, the researcher wants to write a scientific paper on "The Effect of Consumption Ajwa Dates to the First Stage of Labor". Content: Consumption of Ajwa dates during early delivery may shorten the duration of first stage labor in pregnant women. Conclusion: Ajwa dates (Phoenix dactylifera L.) have an indirect effect on uterine contractions as if increased of prostaglandin when we eat7 or 100rams of Ajwa dates (based on Rasulullah’s hadits)  so the duration of the first-stage of labor in pregnant women who consume Ajwa dates is shorter than in pregnant women who do not consume them.