Judul: Gaya Hidup, Intake Zat Gizi Dan Morbiditas Orang Dewasa Yang Berstatus Gizi Obes Dan Normal
Abstrak: The objective of this research was to identify characteristic of samples, food intake, lifestyle, morbidity and energy balance among adult obese and normal nutritional status. A cross-sectional study was conducted from October to November 2010 in Bogor Agricultural University (BAU). The study participants were employee’s rector of BAU. The samples were chosen purposively with criteria were adult category, age >21 years, male and female gender, body mass index (BMI) >27.0 for obese nutritional status; BMI 18.5-25.0 for normal nutritional status, and ready for being sample of research. The number of obese sample were 25 and normal sample 25 people. Majority (72%) of obese samples were 30-49 years old. There was a significant difference in education levels of among samples (p<0.05). Rice, cassava, street food and soft drink consumption were found higher in obese than normal samples. Statistical analysis showed that there was a significant difference in obese and normal samples in protein intakes and adequacy level of protein (p<0.05). There was a significant difference in leisure-time between obese and normal samples (p<0.05). Ready-to-eat food habit was found higher in obese than normal status. The average of energy balance among samples were negative. In addition, there was a significant difference in family history of obesity between obese and normal samples (p<0.05). For the last three month, both subjects suffer from infections of acute respiratory. Diabetes mellitus and uric acid was found in obese subjects, while anemia was found in normal subjects The study showed that nutritional status was positively correlated with age, education levels, frequency of cassava consumption, family history of obesity and ready-to-eat food habit and negatively associated with intakes of protein.
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Judul: Pengetahuan Gizi, Aktivitas Fisik, Konsumsi Snack Dan Pangan Lainnya, Pada Murid Sd Bina Insani Bogor Yang Berstatus Gizi Normal Dan Gemuk
Abstrak: Childhood obesity is increases rapidly in developing country. It’s has important short-term and long-term medical consequences also psychosocial consequences. The objective of the research is to analyze nutritional knowledge, physical activity, snack habit, in normal and overweight of Bina Insani elementary students at Bogor. The cross sectional design was used in this study to elaborate nutritional knowledge, snack habit, and physical activity in normal and overweight students. The total number of 80 students sample was chosen randomly. It consists of 40 students sample with normal nutritional status and 40 students sample with overweight nutritional status. Primary data consisted of physical activity recall (1x24 hours), food consumption recall (2x24 hours), anthropometry data (weight and height), social-economy’s sample condition, food habit, and snack habit using Food Frequency Questionnaire (FFQ). Secondary data were included data of Bina Insani Elementary School. The result showed no relation between level education and wage of parent, nutritional knowledge level, nutritional attitude, snack habit and physical activity with nutritional status of sample. The average energy adequacy level according to WNPG (2004) respectively 82,2% in normal sample and 73,6% in overweight sample.
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Judul: The Isomerization of Xylenes Using Bentonite as catalyst
Abstrak: Isomerisasi xilena dilakukan dengan menggunakan katalis bentonit tanpa aktivasi, teraktivasi asam, dan terimpregnasi ion heksakloroplatinat(IV). Aktivasi bentonit dilakukan dengan variasi waktu aktivasi dan konsentrasi asam sulfat. Waktu aktivasi yang digunakan adalah 1 jam, 2 jam, 4 jam, dan 6 jam, sedangkan variasi konsentrasi asam sulfat yang dipakai adalah 6%, 12%, 24%, dan 48%. Seleksi dari berbagai variabel aktivasi dilakukan berdasarkan nisbah Si/Al. Dari 10 jenis bentonit, maka dipilih 3 jenis bentonit berdasarkan nisbah Si/Al, yaitu bentonit HP-1 (3,30), bentonit HP-8 (5,90), dan bentonit HP-10 (9,36). Ketiga bentonit yang diaktivasi dengan asam menunjukkan bahwa waktu aktivasi selama 4 jam memberikan nisbah Si/Al paling tinggi, sedangkan konsentrasi yang memberikan perbandingan paling tinggi untuk bentonit HP-1 dan HP-8 adalah 24% dan untuk bentonit HP-10 adalah 48%. Impregnasi ion dilakukan dengan merendam bentonit dalam larutan garam kalium heksakloroplatinat(IV). Isomerisasi xilena dilakukan pada suhu 300°C, yaitu dengan membandingkan produk isomerisasi xilena tanpa katalis, isomerisasi xilena oleh katalis bentonit tanpa aktivasi, isomerisasi xilena oleh katalis bentonit yang diaktivasi, dan isomerisasi xilena oleh katalis bentonit yang diimpregnasi. Distribusi relatif isomer o-, m-, dan p- xilena ditetapkan dengan metode spektroskopi inframerah. Penelitian ini memberikan informasi bahwa bentonit secara umum dapat digunakan untuk katalis isomerisasi xilena. Katalis bentonit yang diimpregnasi cenderung menghasilkan isomer para-. Katalis bentonit HP-1 tanpa aktivasi dan yang diaktivasi serta HP-8 yang diaktivasi hanya menghasilkan isomer meta-, sedangkan isomer orto- dihasilkan oleh bentonit HP-8 dan HP-10 tanpa aktivasi. Sebagian besar jenis reaksi yang terjadi adalah reaksi isomerisasi orto- dan para- membentuk meta-. Di samping itu perubahan yang terjadi pada distribusi relatif isomer xilena dipengaruhi oleh reaksi lain, yaitu reaksi transalkilasi etilbenzena yang akan meningkatkan produk isomer dan reaksi disproporsionasi xilena yang akan mengurangi produk isomer.
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