HomeNRCP Research Journalvol. 25 no. 1 (2026)

Determination of Optimum Process Schedule and Nutritional Content of Vacuum-fried Asiatic Clam

Nora T. Garcia | Mark Keneth C. Sumbillo | Arthur G Ibañez | Denis V Policar

Discipline: food sciences

 

Abstract:

Fresh Asiatic clams (Corbicula manilensis) from Region 2, Philippines, were processed using vacuum frying to develop a nutrient-dense and shelf-stable product. Process optimization at 100 °C, 700 mmHg, and a 6 kg batch load yielded the most favorable sensory attributes and the highest product recovery. The optimized treatment (T6) contained 28.66 g protein, 35.25 g carbohydrates, 25.72 g fat, 7.49 g ash, and 2.88 g moisture per 100 g sample. Shelf-life evaluation showed stability for up to four months under ambient conditions, with quality deterioration observed beginning at the fifth month. The product exhibited a low microbial load (<1×10¹ CFU/g) and notable mineral content, particularly zinc and iron. These results demonstrate that vacuum frying effectively produces a nutrient-rich, safe, and shelf- stable clam-based product, with potential for extended shelf life through improved packaging.



References:

  1. Amagliani, G., Brandi, G., Schiavano, GF. (2012). Incidence and role of Salmonella in Seafood Safety. Food Res Int 45, 780-788.
  2. Beuchat, L. R. (1983). Influence of water activity on growth, metabolic activities and survival of yeasts and molds. Journal of Food Protection, 46(2), 135-141. https://doi.org/10.4315/0362-028x-46.2.135
  3. DA-BFAR R02. (2009). Annual Report. Department of Agriculture - Bureau of Fisheries and Aquatic Resources Regional Office No. 02. Retrieved from https://region2.bfar.da.gov.ph/cmsFiles/region2/homepageleft/pdf/bbcdb64e-0eaf-4e40-9b84-e87205059f1a(01-30-2019).pdf on 16 June 2019.
  4. Halarnkar, P.P., Chambers, J.D., Wakayama, E.J., Blomquist, G.J. (1987). Vitamin B12 levels and propionate metabolism in selected non-insect arthropods and other invertebrates. Comparative Biochemistry and Physiology Part B: Comparative Biochemistry 88(3), 869-873.
  5. Iritani, N., Fukuda, E., Inoguchi, K. (1979). Effect of feeding the shellfish Corbicula japonica on lipid metabolism in the rat. Atherosclerosis 34(1), 41-48.
  6. Lai, J., Wu, C., Wu, C., Qi, J., Wang, Y., Wang, H., Liu, Y., Shen., J. (2014). Serotype distribution and antibiotic resistance of Salmonella in food-producing animals in Shandog province of China, 2009 and 2012. Int J Food Microbiol 180(1), 30-38.
  7. Latimer, G.W. (Ed). (2012). Official Method of Analysis: Association of Analytical Chemists. 19th Ed. Association of Official Agricultural Chemists (AOAC) International, Maryland, USA.
  8. Leskova, E., Kubíková, J., Kováčiková, E., Kosicka, M., Porubska, J., Holčíková, K. (2006). Vitamin losses: Retention during heat treatment and continual changes expressed by mathematical models. J Food Compos Anal 19(4), 252- 276.
  9. Mirzaei, H.O., Karapanthios, T., Garoumi, H. (2015). Effect of frying temperature on amount of oil uptake of potato French fries. MOJ Food Process Technol 1(1), 17-19.
  10. PHELPS HL, 1994. The Asiatic Clam (Corbicula fluminea) invasion and system-level ecological change in the Potomac River Estuary near Washington, DC. Estuaries 17(3), 614-621.
  11. Qiu, A., Shi, A., Komaru, A. (2001). Yellow and brown shell color morphs of Corbicula fluminea (Bivalvia: Corbiculidae) from Sichuan Province, China, are triploids and tetraploids. J Shellfish Res 20, 323-328.