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"Abstrak Telah dilakukan degradasi zat organik terlarut pada air tanah dalam. Air tanah dalam di degradasi dengan cara iiradiasi fotokatalitik. Air tanah dalam diambil dari daerah Taman Palem-Cengkareng dari kedalaman 150 meter. Proses degradasi ini dilakukan dengan tiga perlakuan irradiasi yaitu: sinar UV tanpa katalis, katalis saja tanpa sinar UV, dan katalis dengan sinar UV. Sampel air diatur pH nya menjadi pH 5,0 ;7,0 ; dan 9,0. Sumber radiasi yang digunakan adalah lampu black light (UV A) 10 watt dan katalis TiO2 yang digunakan adalah katalis TiO2 yang dibuat dari larutan prekursor Titanium (IV) diisopropoksi bis asetil ? asetonat yang di immobilasasikan pada pelat berukuran 8 x8 cm 2. Masing-masing irradiasi dilakukan selama 6 jam. Larutan Hasil irradiasi di analisis serapannya dengan spektrofotometer UV-Vis, kandungan organik terlarutnya dengan penentuan bilangan permanganat dan larutan hasil degradasinya di analisis dengan alat HPLC. Dari ketiga perlakuan iiradiasi diperoleh data bahwa pada kondisi TiO2/UV degradasinya lebih baik dari pada kondisi irradiasi UV saja dan katalis saja tanpa irradiasi. Sedangkan pengaruh pH menunjukkan proses degradasi fookatalitik sesuai urutan pH 5,0 > 7,0> 9,0. Produk asam organik hasil degradasi salah satunya adalah asam oksalat. Kata kunci: zat organik terlarut (DOM), irradiasi, Katalis TiO2, degradasi."

"Zat warna sintetis beredar secara luas, pada hal belum tetu ainan dipakai sebagai Pewarna. Dalam rangka pengawasandan pemeriksaan rutin perlu suatu inetoda pezneriksaan.Pujuan, penelitian mi adalah untuk memilih suatu cara yanglebih mudah dan sesuai untuk mengenal zat warna sintetisyang larut dalam air den umum digunakan da.lam makanan.Metoda utama yang digunakan untuk niencapai tujuan jul adalahmetoda kromatografi kertas dan sebagai pelengkap dipakaireaksi warna.Dilakukan survey lit eratur sebagai tahap pertama untuk pemilihaneluen yang lebih tepat. Diperoleh 8 macam eluenyang dinilai lebih balk. Masing-masing eluen kemudian dignakan untuk mengelusi 18 zat warna standard. Elien yangniemberi hasil terbaik digunakan sebagai eluen utama. Untukzat warna yang tidak dapat dipisahkan dengan eluen utama,sebagai eluen peiibantu dipi].ih eleun yang memberi pemisahanyang lebih balk pada k'elompok warna yang bendak ditetukan. Dari percobaan yang dilakukan didapat hashl pemishan yang berbeda-beda untuk setiap eluen tersebut; Rf tidakkonstan dan jumlah penibanding yang digunakan maaih krang.Diantara 8 eluen yang dicoba ternyata, EUl metil keton -Aceton - Air (70 : 30 : 30 bagian volume) merupakan eluenterbaik untuk tujuan jut. Untuk membedakan zat-zat yang -tidak dapat dibedakan dengan eluen tersebut dianjffiguxiakan NaCl 1% dalam air sebagai eluen pernbantu. Agar ni -lai Rf dapat dipakai sebagai patokan dalam identifikasi pelu dilakukan penelitian terbadap faktor-faktor yang mempenzaruhi nilai Rf tersebut dan juga disarankan agar DirektoratJendral Pengawasan Obat dan Makanan melengkapi zat warnastandard.

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Synthetic colors have been widely used eventhough theyh

ye not necessarily been proven to be safe tobe used as

food colors. Within the framework of routine control and

inspection, it is necessary to have an inspection method.

The objective of this research is to choose an appropriate

and simple method to recognize water soluble synthetic colors

commonly used in food.

To achieve this objective, the paper chromatography method -

is used as the main method, and color reactions are used

besides.

A literature survey was carried out as the first step to s,

lect the appropriate eluents, eight eluents were selected.

Each eluent was used to develop 18 standard colors. The el

V

ent which gave the best result was used as the main eluent.

For colors which could not be separated by the main eluent,

the e].uent which gave the best separation for the group of

colors to be determined was used as the supporting eluent.

Different results of separation for each of those 8 eluents

were obtained from the experiments; RI values were not constant

and the number of standards used was not sufficient.

Among 8 eluents tested it appears that Ethyl methyl ketone -

Aceton - water (70 : 30 : 30 by volume) was the best eluent

for the purpose mentioned above. In order to differentiate

the substances which could not be differentiated with that

eluent, it is suggested that a 1% solution of NaCl in water

be used as the supporting éluent. In order to use the RI

values for identification, it is necessary to investigate

the factors that influence them. it is also suggested that

the Directorate Generale for Drug and Food Control takes

necessary steps towards complating the standard colors."

"ABSTRAKAsupan zat besi yang tidak adekuat merupakan faktor risiko terjadinya anemia defisiensi besi. Skripsi ini merupakan penelitian dengan desain studi cross sectional yang bertujuan untuk mengetahui faktor-faktor yang berhubungan dengan asupan zat besi. Pada penelitian ini melibatkan responden sebanyak 189 siswi SMA Negeri 5 Depok. Pengumpulan data asupan zat besi melalui wawancara food recall 3x24 jam. Data dianalisis secara bivariat menggunakan uji t-independen dan regresi korelasi linier, sedangkan secara multivariat dianalisis menggunakan uji regresi linier ganda. Analisis bivariat menunjukkan terdapat perbedaan asupan zat besi yang signifikan berdasarkan pengetahuan gizi, konsumsi suplemen zat besi, persepsi citra tubuh, dan keterpaparan media massa. Pengetahuan gizi yang cukup, konsumsi suplemen zat besi, persepsi citra tubuh positif, dan peran keterpaparan media massa akan meningkatkan asupan zat besi.

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ABSTRAKInadequate iron intake was a risk factor for iron deficiency anemia. This research used cross sectional design that aims to identify factors relation to iron intake. The study was conducted on 189 female students Senior High School 5. Iron intake was measured by 3x24 hours food recall. The data was bivariate analyzed by t-independent test and regression linier test, and multivariate analyzed by double regression linier test. Bivariate analyzes showed that there was significant difference of iron intake based on nutrition knowledge, iron supplement consumption, body image, and role of mass media. Good nutrition knowledge, iron supplement consumption, positive body image, and role of mass media sufficient to improve iron intake."

"Female adolescents are vulnerable to iron deficiency anemia (IDA) and if it persists into their reproductive years has serious implications not only for the health of their offsprings but for their own as well. An iron supplementation is warranted in order to provide sufficient iron stores prior to pregnancy and to effect desirable birth outcomes. A communication component of the supplementation is regarded as essential for improving compliance. Therefore, an experimental community trial involving adolescent female students in two public high schools in Metro Manila was conducted between October-December 1997. The objective of the study was to asses the effect of communication on compliance to weekly iron supplementation. The students were assigned to three groups: iron plus communication (FeC group, n = 82), iron (Fe group, n = 89), and control group (n=78). The FeC and Fe groups received iron tablets containing 60 mg. Elemental iron and 250 mcg. Folic acid while the control group received placebo tablets from Physical Education Health and Music (PEHM) teachers once a week of eight subsequent weeks. Teachers assigned to the FeC group were trained communication. Comparison were made between the three groups on compliance as communication. Comparisons were made between the three groups on compliace as measured by attendance to tablet distribution and actual ingestion through stool test, record on index card and interview. Additionally, levels and prevalence of anemia were measured before and after intervention and a pre and post test about knowledge on IDA and possible causes and treatments were included. Data about side-effects, reaction from students, parents and teachers about the supplementation-communication activities and suggestions for futher improvements in conductiong such future undertaking were obtained from focus group discussions (FGDs). Comparisons of actual tablet ingestion between the three groups showed significantly higher compliance in the FeC group (P<0.001) than in the other two group as measured by record on index card and interview desoite more side effects felt. Changes from pre to post-test knowledge scores o iron were significantly greater for the FeC group (p<0.001) than in the Fe and control groups. However, hemoglobin levels improved significantly in the Fe group (p<0.05) but not in the FeC group and remained the same in the control group. Reactions obtained through focus group discussions from parent (as reported by students), teachers and the participants found the program beneficial and feasible for implementation on a larger scale. Compliance enhancing strategies and motivational approaches for adolescent female students must consider the potential influence of family, fiends and teachers as revealed by the Venn diagram in planning iron supplementation programs with communication for this target group."