Judul: Optimasi Pembuatan Pati Resisten Tipe III dari Pati Singkong Gen (Manihot esculenta Crantz)
Abstrak: One of products of cassava starch modification is resistant starch. Resistant starch has several benefits which of play a role in the metabolism of fat and cholesterol, binding toxins, bile acids, preventing colon cancer, coronary heart disease and diabetes type II. The purpose of this research is to optimization of making starch cassava (Manhot esculenta Crantz) with autoclaving-cooling method and debranching with pululanase enzyme method to produce resistant starch type III. Extract cassava starch has a moisture content of 9.58% with yield of 17.44%. The yield of starch modification by using a drying oven. Based on this study, modification of cassava starch with autoclaving-cooling method obtained the highest resistant starch content by debranching method was 87.64% at a concentration 1.04 U/g. In this study showed that the best resistnt starch content, modification of starch was using debrancing with pululanase enzyme method.
Keyword: Bogor Agricultural University (IPB), resistant starch, debrancing, cassava starch, Autoclaving-cooling

Judul: Modifikasi Pati Garut (Maranta arundinaceae L.) dengan Hidrolisis Asam, Siklus Autoclaving-Cooling, dan Heat Moisture Treatment (HMT) untuk Menghasilkan Pati Resisten Tipe III (RS3)
Abstrak: Arrowroot starch has potential as raw material to produce resistant starch. Like other sources of starch, arrowroot starch naturally has low resistant starch content. Modification treatment of arrowroot starch for increasing resistant starch content in this research are acid hydrolysis, threeautoclaving- cooling-cycles, and HMT using heated for 15 minutes (HMT15’) and 60 minutes (HMT60’). The objectives of this research are to study the increased of resistant starch, amylose content and reducing sugar content, and also the decreased of starch digestibillity and total starch; to obtain modification method of arrowroot starch (acid hydrolysis, threeautoclaving- cooling-cycles, HMT, and or combination of acid hydrolysis, three-autoclaving-cooling-cycles, and HMT) for producing the highest resistant starch content; and also to obtain the best heat time of HMT between 15 minutes and 60 minutes at 1210C for increasing resistant starch content. Arrowroot starch modification by using combination of acid hydrolysis method, three autoclaving-cooling cycles, and HMT using heated for 60 minutes increased resistant starch content (from 2.15% to 29.63%), amylose content (from 24.50% to 35.83%), and reducing sugar (from 4.92% to 10.20%), and also decreased both starch digestibility (from 84.92% to 54.12%) and total starch content (from 98.10% to 71.28%). Treatment in arrowroot starch modified by using acid hydrolysis method, threeautoclaving- cooling-cycles and HMT60 minutes (HAAC-HMT60’) increased resistant starch content until 14 times fold compared to native arrowroot starch. That combination of treatment (HAAC-HMT60’) has been proven significantly (P<0.05) to increase resistant starch, amylose content, reducing sugar content and also decrease both starch digestibility and total starch from modified arrowroot starch.
Keyword: Bogor Agricultural University, Amylose Content, HMT, Reducing Sugar, Resistant Starch, Starch Digestibility, Total Starch.

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