Judul: Pengembangan brownies kukus tepung ubi jalar(Ipomoea batatas L.) di PT.Fits Mandiri Bogor
Abstrak: Brownies adalah salah satu jenis cake yang berwarna cokelat kehitaman. Brownies ada dua macam yaitu brownies kukus dan brownies oven. Struktur brownies sama seperti cake yaitu ketika dipotong terlihat keseragaman pori renah, jika dimakan terasa lembut, lembab dan menghasilkan flavor yang baik (Sunaryo, 1985). Brownies mempunyai tekstur lebih keras daripada cake karena brownies tidak membutuhkan pengembangan gluten
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Judul: Optimalisasi Produksi Brownies Singkong pada Mr.BrownCo Bogor
Abstrak: Bogor city is one area that experiencing rapid development of UMKM . Mr.BrownCo is one of UMKM in Bogor that capture business opportunities with compared unique food product to other food business . Brownies Cassava is one kind of snack practical with excellent nutritional content and safe for consumption so make such products can provide value added to the company in addition to excellence in product diversification of raw materials . One of the goals to be achieved by the company is the optimal profit . To achieve the optimization of the profits of a company faced with the reality of limited resources. Optimal production plan obtained by using linear programming . The output of data processing by using LINDO will provide an optimal combination of products so that maximum benefit can be achieved . The output of the data processing that provide an optimal combination will be compared with the actual conditions that occur in the company and to evaluate whether the activities undertaken during this production is optimal or not . Based on the results of the optimization analysis can be seen that the rate of production of brownies in mr.BrownCo during August - November 2012 have not been optimal . This is because there are differences between the actual conditions with optimal conditions . Mr.BrownCo should produce up to optimal conditions in order to make a profit ( gross profit ) is maximum . Mr.BrownCo should set back the excess availability of resources such as raw materials , labor hours and machine hours.
Keyword: Linier Programming, Optimization, Cassava Brownies

Judul: Mercury Toxicity and It’s Effect on Histopathology Change of Nile Tilapia (Oreochromis niloticus).
Abstrak: Nile tilapia (Oreochromis niloticus) is one of fish species that oportunity to contaminated with mercury. The effects of pollutants can damage living organisms organs and can cause death. The effects caused mercury had acute or chronic character. The aims of this study are to determine threshold and acute toxicity of mercury chloride (HgCl2) of Nile tilapia (Oreochromis niloticus), to assess the effect of mercury chloride (HgCl2) on several biometric parameters (survival, growth rate of average daily weighted, liver condition, bile and reproductive variability of Nile tilapia (Oreochromis niloticus), assess the level of damage to the histological structure of the gills, liver and kidney of Nile tilapia (Oreochromis niloticus) caused mercury chloride (HgCl2) exposure. This study was conducted from February to June 2013. Nile Tilapia (Oreochromis niloticus) were used in this study were female with average weight 20 grams or 11-13 cm length range. Toxicant materials used in this study was mercury chloride (HgCl2). Fish were reared in each aquarium 60x40x30 containing 48 liters of water. This study consists of three stages: a preliminary test, acute test, and sub-chronic test. To determine the changes in biometric condition of tilapia approximated by measuring the survival rate (SR), the growth rate of average daily weight , the content of mercury in the fish organs, hepatosomatic index (HSI), the relative bile volume (VER), gonadal soamtic index (IKG), fecundity and oocit diameter, tissue damage caused by mercury in fish organs by making histological preparations stained with hematoxylin and eosin. The median lethal concentration (96 hr, LC50) of Mercury Chloride was calculated as 1,64 mgL--1.The survival rate was highest in the control treatment (46,67 %) . Mercury chloride with concentration 0.196 mgL--1 show significant effect to changes HSI and relative bile volume, and oocyte diameter of Nile tilapia (p < 0,05). Mercury chloride with a concentration of 0,164 mgL-1 and 0,196 mgL-1 have not a significant effect on the growth rate of weight, gonadal somatic index and fecundity of Nile tilapia (p > 0,05). Mercury chloride cause damage to gills (hyperplasia, hypertrophy, proliferation and neukrosis), liver (hyperplasia, hemorhage, shrinkage of hepatocytes, proliferation and neukrosis) and kidney (hyperplasia, hemorrhage, shrinkage of the glomerulus, proliferation and neukrosis).
Keyword: Nile tilapia, Hepatosomatic indexs (HSI), histopathology