Can Near Infrared Spectroscopy (NIRS) Quantify The Quality of Fishmeal Circulating in Jember, Indonesia?

Wulandari, S and Syahniar, T M and Nusantoro, S (2020) Can Near Infrared Spectroscopy (NIRS) Quantify The Quality of Fishmeal Circulating in Jember, Indonesia? IOP Conference Series: Earth and Environmental Science, 411. 012039. ISSN 1755-1315

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Abstract

The objectives of this study were to determine the range of nutrient content of fishmeal circulating in Jember Regency, East Java, and to make a calibration standard for quick calculation using NIRS by R2 and RMSECV. This study used 11 fishmeal samples from around Puger, Jember and around Muncar, Banyuwangi. The physical examination included organoleptic tests (color, odor, and texture), density, and chemical analysis of fishmeal samples. The data obtained were analyzed descriptively. The results indicated that the nutrient content of fishmeal had greatly variation. The CP content presented a quite high ranged between 26.61% to 64.30%. The result of organoleptic test showed the color was yellowish brown, brown, slightly brown to dark brown. The odor was generally standard, which was fishy. Some fishmeal samples were moist in texture, such as fishmeal samples from Jember A (22.03%) and Muncar Banyuwangi B (19.65%). The average of fishmeal density was 0.528 g/ml that ranged between 0.341-0.726 g/ml. The measurement of R2 and RMSECV calibration of fishmeal using NIRS showed good results to predict CF, DM, and EE contents. The usage of NIRS technology was recommended for proximate analysis unless ash content due to the absence of spectrum absorption for minerals.

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