Judul: Silage Characteristics of Goldfish Offal with Starter Addition of Lactobacillus plantarum SK(5) and Pediococcus pentosaceus BP(20)
Abstrak: Silase adalah produk cair yang dapat dibuat melalui proses fermentasi spontan dan starter. Penelitian ini bertujuan untuk menentukan karakteristik mikrobiologis dan kimiawi selama fermentasi silase jeroan ikan mas secara spontan dan dengan penambahan starter L. plantarum SK(5) dan P. pentosaceus BP(20). Fermentasi dilakukan selama 15 hari (H0, H5, H10, dan H15) dan data yang dianalisis meliputi total bakteri asam laktat (BAL), kadar total asam tertitrasi (TAT), dan nilai pH. Silase jeroan ikan mas spontan memiliki total BAL 7,85 - 9,11 cfu/mL, kadar TAT 0,32%-1,54%, dan nilai pH 6,07-4,28. Silase jeroan ikan mas menggunakan starter memiliki total BAL 8,07 – 9,29 cfu/mL, kadar TAT 0,68%- 1,97%, dan nilai pH 6,07-4,18. Total asam amino pada silase jeroan ikan mas spontan memiliki nilai yang lebih tinggi dari pada silase jeroan ikan mas menggunakan starter. Asam amino tertinggi pada kedua perlakuan yaitu asam glutamat, asam aspartat dan lisin., Silage is a liquid product that can be made through spontaneous and starter fermentation processes. This study aimed to determine the microbiological and chemical characteristics during spontaneous fermentation of carp offal silage and with the addition of L. plantarum SK(5) and P. pentosaceus BP(20) starters. Fermentation was carried out for 15 days (H0, H5, H10, and H15) and the data analyzed included total lactic acid bacteria (LAB), total titratable acid (TAT) levels, and pH values. Spontaneous carp offal silage had total LAB of 7.85-9.11 cfu/mL, TAT levels of 0.32%-1.54%, and pH values of 6.07-4.28. Silage of carp offal using starter had total LAB 8.07-9.29 cfu/mL, TAT levels of 0.68%-1.97%, and pH values of 6.07-4.18. Total amino acids in spontaneous carp offal silage had a higher value than carp offal silage using starter. The highest amino acids in both treatments were glutamic acid, aspartic acid and lysine.
Keyword: silase, karakterisasi, Lactobacillus plantarum SK(5), Pediococcus pentosaceus BP(20)

Judul: Fermentasi Silase Keong Mas (Pomacea canaliculata) dengan Penambahan Lactobacillus plantarum NS (9)
Abstrak: Silase ikan adalah produk cair yang terbuat dari ikan utuh atau limbah hasil olahan perikanan. Tujuan dari penelitian ini untuk (1) menentukan pengaruh penambahan starter L. plantarum NS (9) (10%) dan tanpa penambahan starter (0%) terhadap karakteristik kimiawi dan mikrobiologis silase selama fermentasi dan (2) menentukan karakteristik produk silase yang dihasilkan. Pembuatan silase dilakukan dengan dua perlakuan yaitu penambahan starter 0% dan 10%, masingmasing dua ulangan kemudian difermentasi selama 12 hari pada suhu ruang. Pengamatan terhadap parameter total mikroba, total bakteri asam laktat (BAL), pH dan total asam tertitrasi dilakukan setiap empat hari selama fermentasi. Penambahan starter L. plantarum NS (9) tidak memberi pengaruh terhadap karakteristik kimiawi tetapi berpengaruh terhadap karakteristik mikrobiologis selama fermentasi. Perlakuan terpilih yaitu penambahan starter 10% dengan karakteristik kadar air 48,47%; protein kasar 48,94%; lemak kasar 1,39%; kadar abu 1,49%; karbohidrat by difference 0,71%; serat kasar 0,21% dan BETN 0,50%.
Keyword: Fermentasi, Lactobacillus plantarum NS (9), silase

Judul: 3D model reconstruction using aerial photo to measure object height
Abstrak: 3D reconstruction, especially for height extraction, using digital aerial photos taken from a non-metric camera and Unmanned Aerial Vehicle (UAV) is a challenging study. The purposes of the study are to determine the factors affect the accuracy of an object’s height reveal from a 3D model and establish procedures to deliver the optimal result. Two or more overlapping aerial photos can be constructed into the 3D model by applying the principles of collinearity and epipolar geometry using 3D reconstruction algorithm. Due to the instability of non-metric digital camera, the camera must be calibrated before 3D reconstruction is processed, in that way the quality of spatial extraction can be then measured. The study is conducted using 24 megapixels resolution Sony NEX7 digital camera and Hexacopter UAV. UAV was flown to a height of 50 m, 60 m and 70 m and placed at a certain position in order to get some height variations of camera. Camera Calibration Toolbox is utilized to calculate intrinsik parameters of the camera and a specific program is developed using MATLAB in order to build the 3D model and to obtain the object’s height. The result validation is done by comparing the height from 3D model with that one measured using Electronic Total Station. The accuracy of the object’s height up to 1 mm successfully achieved, with the largest height prediction error reaches 15.2 cm at 70 m flying height above ground level and average percentage error 4.07 for 20 objects.
Keyword: 3D reconstruction, collinearity, epipolar geometry, UAV