Saraswati Saraswati
Departemen Ilmu Dan Teknologi Pangan, Fakultas Teknologi Pertanian, IPB University, Bogor, Indonesia

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Perubahan Nilai Gizi dan Alergenisitas Produk Olahan Intermediat Surimi dan Otak-Otak Ikan Tenggiri Siap Santap Vina Giovani; Nurheni Sri Palupi; Dian Herawati; Saraswati Saraswati
Jurnal Teknologi dan Industri Pangan Vol. 34 No. 2 (2023): Jurnal Teknologi dan Industri Pangan
Publisher : Perhimpunan Ahli Teknologi Pangan Indonesia bekerjasama dengan Departemen Ilmu dan Teknologi Pangan, IPB University Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.6066/jtip.2023.34.2.242

Abstract

Fish is one of the nine major food allergens. Avoiding consumption of fish is a common preventive measure to mitigate fish allergies. On the other hand, food processing may potentially alter the allergenicity of fish, and thus, it is important to identify the most effective fish processing methods that can reduce its allergenicity. This research aimed to characterize the nutritional value, intensity of allergens, and allergenicity from the processing of tenggiri fish processing to produce surimi as intermediate food and ready to eat (RTE) otak-otak. The processing steps consisted of washing and adding cryoprotectant during surimi processing, and using deep and air frying methods in RTE otak-otak processing. Changes in the nutritional value and intensity of allergens of fish meat and its processed products were measured using proximate analysis and SDS-PAGE electrophoresis, respectively. The alterations in the allergenicity were investigated using immunoblotting and ELISA. The results revealed changes in the nutritional value due to the processing. Surimi production successfully removed a protein band of 10-–13 kDa, which is suspected to be an allergen. Additionally, both deep and air frying methods effectively removed allergenic proteins with molecular weights above 100 kDa. Immunoblotting assay showed the allergen only appeared in fish meat absent in all of the processed products. The allergenicity rates of surimi and otak-otak was reduced by 90.78 and 98.68%, respectively, as compared to the fish meat. In conclusion, the nutritional value of air-fried otak-otak is superior while the allergenicity is lower than the deep-fried ones. Therefore, air frying processing method for tenggiri fish can be potently used to produce hypoallergenic fish products.
Product Formulation of Ready to Use Fish Food (RUFF) from Snakehead Fish Flour (Channa striata) Puspo Edi Giriwono; Safira P.A Haryanto; Saraswati Saraswati
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 6 (2025): December 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i6.2017-2025

Abstract

RUFF (ready-to-use fish food) is a nutrient and calorie-dense food with high protein and energy consumed by children under five years of age who suffer from severe acute malnutrition. RUFF in this study was designed to be the alternative product for RUTF (ready-to-use therapeutic food) using snakehead fish flour as skim milk substitute. This study aims to determine the suitability of snakehead fish flour as an animal protein alternative, obtain the RUFF formula that meets FAO and WHO standards, and determine the consumer acceptance. The research investigated different amount of snakehead fish flour in the RUFF formulation. There were 3 formulas with different snakehead fish flour, i.e. 20% (F1), 22% (F2), and 24% (F3). The results of the analysis showed that the highest protein content was found in formula F3 (14.35 ±0.72)% with moisture content of 2.32 ± 0.06%, ash content of 2.56 ± 0.04%, fat content of 29.39 ± 0.24%, and carbohydrate content of 51.37 ± 0.94%. All three RUFF formulations meet the nutritional standards set by the FAO and WHO. The hedonic rating test results and ranking showed that the most preferred formula by the panelist was formula F1 containing 20% snakehead fish flour with an average rate of 7.46 (like). Formula F1 is the formula of RUFF with the highest rate of consumer acceptance.