Judul: Formulation of Centella asiatica Leaf Powder on Weaning Food as Functional Food Product
Abstrak: The aim of this study was examine the formulation of Centella asiatica leaf powder on weaning food as a functional food product. The study was conducted from April to September 2011. The main material used in this study was fres Centella asiatica leaf that will be processed into powder and another materials for the manufacture of weaning food. The instruments used in this study were oven blower FIR, diskmill, HPLC and AAS. The study design used in this study a Randomize Complete Blok Design. The results showed that fresh Centella asiatica leaf contain protein 4,58% wb, beta-karoten 88,76 ppm, vitamin C 79,14 mg/100g, Fe 43,26 mg/100g, Ca 1994,28mg/100g that needed by infants. Drying affects the physical and chemical properties of Centella asiatica leaf. The best drying temperatur for powder Centella asiatica was 550C. Centella asiatica powder has already safe quality on mikrobial contaminan. The time of adding Centella asiatica powder affected the density of weaning food. Average nutrition contant of weaning food Centella asiatica added, water 3,68%wb, protein 13,00%db, fat 2,10%db, beta-karoten 330,63ppm, vitamin C 216,16mg/100g, calcium 276,63mg/100g, Fe 14,29mg/100g, selenium 52,02mg/100g, asiatic acid 0,66%db. Average nutritional value of weaning food Centella asiatica added has met SNI and PAG. Overall the weaning food Centella asiatica was accepted by panelist, and the most aceptable weaning food has been qualified as safe weaning food instan powder.
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Judul: Organoleptik Properties, Nutritional Content, and  Antioxidant Activity of Instant Cream Soup from Soybean Tempeh Flour and Gotu  Kola (Centella asiatica)
Abstrak: Lansia rentan mengalami masalah kesehatan seperti gangguan fungsi kognitif dan kurangnya ketahanan tubuh. Tempe kedelai mengandung vitamin B12 yang berperan dalam fungsi kognitif. Sementara itu pegagan merupakan antioksidan kuat yang dapat meningkatkan ketahanan tubuh. Penelitian ini bertujuan menganalisis sifat organoleptik, kandungan gizi, dan aktivitas antioksidan produk sup krim instan berbahan tepung tempe kedelai dan pegagan sebagai alternatif makanan untuk lansia. Desain penelitian ini adalah experimental study dengan Rancangan Acak Lengkap (RAL). Berdasarkan hasil uji organoleptik, F3 ditetapkan sebagai formula terbaik dengan kadar air 2,99%; kadar abu 4,41%; kadar lemak 9,72%; kadar protein 21,41%; kadar karbohidrat 60,29%, kadar vitamin B12 0,08 μg, dan aktivitas antioksidan (IC50) pada konsentrasi 2514 ppm dan setara dengan 15,81 mg vit C. Formula terpilih memenuhi 6,9% energi terhadap AKG lansia laki-laki, sedangkan terhadap AKG lansia perempuan memberikan kontribusi 8,0% energi. Formula terpilih memenuhi syarat klaim sebagai pangan tinggi protein., The elderly are vulnerable to health problems such as impaired cognitive function and lack of body resistance. Soybean tempeh contains vitamin B12 which plays a role in cognitive function. Meanwhile, Centella asiatica is a strong antioxidant that can increase the body's resistance. This research aims to analyze the organoleptic properties, nutritional content, and antioxidant activity of instant cream soup products made from soybean tempe flour and Centella asiatica as an alternative food for the elderly. The design of this research is an experimental study with a Completely Randomized Design (CRD). Based on the results of the organoleptic test, F3 was determined as the best formula with a water content of 2.99%; ash content of 4.41%; fat content of 9.72%; protein content of 21.41%; carbohydrate content of 60.29%, vitamin B12 content of 0.08 μg, and antioxidant activity (IC50) at a concentration of 2514 ppm and equivalent to 15.81 mg of vitamin C. The selected formula contributes 6.9% energy against the RDA for elderly men, while the RDA for elderly women contributes 8.0% of energy. The selected formula meets the claim requirements as a high-protein food.
Keyword: Centella asiatica, elderly, instant cream soup, soybean tempeh flour

Judul: Cycle Hamilton pada Graf Lengkap, Graf Regular, dan Graf 2-Connected 4-Regular Berorder Kurang dari Sepuluh
Abstrak: Suatu graf disebut graf Hamilton apabila graf tersebut memuat cycle Hamilton, yaitu cycle yang melewati setiap vertex tepat satu kali. Menentukan keberadaan cycle Hamilton pada suatu graf dapat menggunakan syarat cukup yang berupa teorema-teorema yang telah diperkenalkan sejak tahun 1950-an. Beberapa syarat cukup yang dibahas dalam karya ilmiah ini adalah syarat cukup yang berhubungan dengan graf lengkap dan graf regular. Suatu graf lengkap berorder 𝑛������ ≥ 3 dan graf r-regular berorder 𝑛������ ≤ 2𝑟������ + 1 merupakan graf Hamilton, Karena kedua graf tersebut memuat cycle Hamilton. Selanjutnya, syarat cukup tersebut digunakan untuk menentukan keberadaan cycle Hamilton pada graf 2-connected 4- regular berorder kurang dari 10.
Keyword: graf Hamilton, graf regular, graf lengkap, graf 2-connected 4-regular