Screening Filamentous Tropical Fungi for their Nutritional Potential as Sources of Crude Proteins,Lipids and Minerals

Abstract

The use of fungal and yeast biomass in foodstuff, either as supplements or as major ingredients in formulations is an area of growing interest for the modern food industry. The aim of this study was to evaluate the nutritional potential of biomasses obtained from filamentous fungi Penicillium sclerotiorum, Penicillium janthinellum, Rhizopus stolonifer and Syncephalastrum racemosum. Biomasses presented 26-37% of total proteins, 1.7-3.5% of lipids and 4.6-9.1% of ashes. The humidity level reached 75-83%. Ashes were screened for minerals contents with a special outcome for S. racemosum biomass that presented 3438 mg/100 g (dw) of magnesium. Fatty acids present in the biomasses were screened and the palmitic (C16:0), estearic (C18:0), elaidic (18:1n9-t), oleic (18:1n9-c), linolelaidic (C18:2n6-t), linoleic (C18:2n6-c) and γ-linolenic (C18:3n6) acids were found to be the most abundant, from a total of 88-90% of identified fatty acids. Overall data indicate that the filamentous fungi studied have good nutritional properties, possessing a combination of good level of proteins, low level of fat, and presence of essential fatty acids, including omega-3 derivatives, along with the presence of Ca, Mg, Zn and Fe.

Keywords

filamentous fungi biomass proteins fatty acids minerals

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References

AOAC International (2007). Official Methods of Analysis of AOAC International. In: Horwitz W. and Latimer G.W. (eds), Vol. I and II, 18th edn, Gaithersburg, MD: AOAC.

Barros L. , Baptista P. , Correia D.M. , Casal S. , Oliveira B. and Ferreira I.C.F.R. ( 2007). Fatty acid and sugar composition and nutritional value of five edible mushrooms from Northeast Portugal. Food Chemistry 105: 140-145.

Bishnoi N.R. and Garima. (2005). Fungus: an alternative for bioremediation of heavy metal containing wastewater: a review. Journal of Scientific and Industrial Research 64: 93-100.

Chye F.Y. , Wong J.Y. and Lee J. ( 2009). Nutritional quality and antioxidant activity of selected edible wild mushrooms. Food Science and Technology International 14: 375-384.

Food and Agriculture Organization of the United Nations [FAO] (1970). Aminoacid Content of Foods a Biological Data on Proteins. Rome: Food Policy and Food Science Service, Nutrition Division.

Halász A. and Lasztity R. ( 1991). Use of Yeast Biomass in Food Production. Boca Raton: CRC Press/ Taylor and Francis, pp. 23-41.

He K. , Liu K. , Daviglus M.L. , Morris S.J. , Loria C.M. , Van Horn L. , Jacobs D.R. and Savage P.J. ( 2006). Magnesium intake and incidence of metabolic syndrome among young adults. Circulation 113: 1675-1682.

Karppanen H. , Karppanen P. and Mervaala E. ( 2005). Why and how to implement sodium, potassium, calcium, and magnesium changes in food items and diets? Journal of Human Hypertension 19: S10-S19.

Kawashima L.M. and Soares L. M.V. (2003). Mineral profile of raw and cooked leafy vegetables consumed in Southern Brazil. Journal of Food Composition and Analysis 16: 605-611.

10.

Lepage G. and Roy C.C. ( 1986). Direct transesterification of all classes of lipids in a one-step reaction. Journal of Lipid Research 27: 114-119.

11.

Ouzouni P.K. , Petridis D. , Koller W. and Riganakos K.A. (2009). Nutritional value and metal content of wild edible mushrooms collected from West Macedonia and Epirus, Greece. Food Chemistry 115: 1575-1580.

12.

Pedrosa L.F.C. and Cozzolino S.M.F. ( 2001). Composição centesimal e de minerais de mariscos crus e cozidos da cidade de Natal/RN. Ciência e Tecnologia de Alimentos 21: 154-157.

13.

Perring L.C. , Andrey D. , Basic-Dvorzak M. and Hammer D. ( 2005). Rapid quantification of iron, copper and zinc in food premixes using energy dispersive X-ray fluorescence. Journal of Food Composition and Analysis 18: 655-663.

14.

Pires C.V. , Oliveira M.G.A. , Rosa J.C. and Costa N.M.B. ( 2006). Qualidade nutricional e escore químico de aminoácidos de diferentes fontes protéicas. Ciência e Tecnologia de Alimentos 26: 179-187.

15.

Rizzoli R. ( 2008). The role of calcium and vitamin D in the management of osteoporosis. Bone 42: 246-249.

16.

Ronda S.R. and Lele S.S. ( 2008). Culture conditions stimulating high γ-linolenic acid accumulation by Spirulina platensis. Brazilian Journal of Microbiology 39: 693-697.

17.

Takahashi J.A. , Castro M.C.M. , Souza G.G. , Lucas E.M.F. , Bracarense A.A.P. , Abreu L.M. , Marriel I.E. , Oliveira M.S. , Floreano M.B. and Oliveira T.S. ( 2008). Isolation and screening of fungal species isolated from Brazilian cerrado soil for antibacterial activity against Escherichia coli, Staphylococcus aureus, Salmonella typhimurium, Streptococcus pyogenes and Listeria monocytogenes. Journal of Mycologie Médicale 18: 198-204.

18.

Takahashi J.A. and Lucas E. M.F. (2008). Ocorrência e diversidade estrutural de metabólitos fúngicos com atividade antibiótica. Química Nova 31: 1807-1813.

19.

Torres E.A.F.S. , Campos N.C. , Duarte M. , Garbelotti M.L. , Philippi S.T. and Rodrigues R.S.M. ( 2000). Composição centesimal e valor calórico de alimentos de origem animal. Ciência e Tecnologia de Alimentos 20: 145-150.

20.

US Department of Health and Human Services and US Department of Agriculture (2005). Dietary guidelines for Americans. Available at: http://www.health.gov/dietaryguidelines/dga2005/document/default.htm (accessed June 05, 2010).

21.

Ward O.P. and Singh A. ( 2005). Omega-3/6 fatty acids: alternative sources of productions . Process Biochemistry 40: 3627-3652.

22.

Wiebe M.G. , Robson G.D. and Trinci P.J. ( 1998). Peptone changes the timing and accumulation of morphological mutants of the Quorn® myco-protein fungus Fusarium graminearum A3/5 in glucose-limited chemostat cultures. FEMS Microbiology Letters 169: 23-28.

23.

Yamada E.A. , Alvim I.D. , Santucci M.C.C. and Sgarbieri V.C. ( 2003). Composição centesimal e valor protéico de levedura residual da fermentação etanólica e de seus derivados. Revista de Nutrição 16: 423-432.

24.

Yamada E.A. and Sgarbieri V.C. ( 2005). Yeast (Saccharomyces cerevisiae) protein concentrate: preparation, chemical composition, and nutritional and functional properties . Journal of Agricultural and Food Chemistry 53: 3931-3936.