X-ray diffraction pattern and relative crystallinity of irradiated arrowroot starch
DOI:
https://doi.org/10.15392/bjrs.v7i2A.645Keywords:
arrowroot, X-ray diffraction, γ-radiationAbstract
After cereals, tubers and roots are the major source of starch for food and industrial uses. Arrowroot refers to any plant of the genus Marantha, but the term is most commonly used to describe the easily digested starch obtained from the rhizomes of Marantha arundinacae. The rhizomes of this herbaceous plant contain about 20% of starch. As few studies exist on arrowroot starch, the objective of this preliminary work was to study the X-ray diffraction (XRD) patterns of arrowroot starch when treated by γ-radiation with doses up to 15 kGy in a 60Co source. The XRD patterns of the arrowroot starch exhibited A-type crystalline arrangements with strong peaks at approximately 15º, 17º, 18ºand 23º (2θ). A slight increase of diffractogram peaks intensity was noticed after the irradiation process. The cristallinity index was calculated using Bruker DIFFRAC.EVA version 4.2 software. Relative crystallinity seems to increase with radiation doses, and this effect is more noticeable at low doses. That can be attributed to different radiation sensitivity among the amorphous and crystalline regions of the arrowroot starch molecule. Present results will contribute to elucidate the behavior under radiation treatment of this starchy component increasingly employed by the food industry.
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References
JANE, J; KASEMSUWAN, T.; LEAS, S. et al. Anthology of starch granule morphology by scanning electron microscopy. Starch/Starke, v 46, p 121–129, 1994.
KIJAC, M.B. The south america table: the flavor and soul of authentic home cooking from patagonia to Rio de Janeiro. The Harvard Common Press, Boston, MA, 2003.
KUMALASARI, I.D.; HARMAYAN, E.; LESTARI, L.; ARSANTI, R. et al. Evaluation of immunostimulatory effect of the arrowroot (Marantaarundinacea. L) in vitro and in vivo. Cy-totechnology, v. 64, p. 131-137, 2012.
KALAPPURA, U.G.; AUGUSTINE, R.; MATHEW, K.T. Microwave properties of arrowroot and its medical applications. Microw Opt Technol Lett, v. 51, p. 1267–1270, 2009.
LEE, M.Y.; K.H.CHAN, K.H. Effects of cheonggukjang containing arrowroot isoflavones on bone metabolism in ovariectomized rats. Food Sci Biotechnol. v. 20, p. 335–34, 2011.
NISHAA, S.; VISHNUPRIYA, M.; SASIKUMAR, J.M.; CHRISTABEL, H.P.; GOPALA-KRISHNAN, V.K. Antioxidant activity of ethanolic extract of Marantaarundinacea L. tuberous rhizomes. Asian J Pharm Clin Res, v. 5, p 85–88 , 2012.
SANTOS, W.J.; MIRANDA, A.P.; GONÇALVES, B.; et al. Propriedades mecânicas de fil-mes obtidos a partir de fécula de araruta (marantaarundinaceae), nanoargila e glycerol, In: CON-GRESSO BRASILEIRO DE ENGENHARIA E CIÊNCIA DOS MATERIAIS, 21º CBECIMAT 2014, Cuiabá, MT. Anais...Cuiabá, MT, Mato Grosso, 2014, p. 7666-7673.
GORDILLO, C. A. S.; VALENCIA, G. A.; ZAPATA, R. A. V.; HENAO, A. C. A. Physico-chemical Characterization of Arrowroot Starch (Marantaarundinacea Linn) and Glycer-ol/Arrowroot Starch Membranes. Int J Food Eng, v. 10 (4), p. 727-735, 2014.
PEPE, L. S.; J. MORAES, J.; ALBANO, K. M.; TELIS, V. R. N.; FRANCO, C. M. L. Effect of heat-moisture treatment on the structural, physicochemical, and rheological characteristics of arrowroot starch. Food Sc Technol Internat, v. 22(3), p. 256-265, 2015.
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