In order to determine if the profile of free amines
in the embryo was different from the endosperm, the two parts were separated and analyzed individually. Canned corn was used for this purpose. Higher concentrations of spermine were detected in the embryo (Table 3), whereas the concentrations of putrescine and spermidine were not significantly different (p > 0.05). Therefore, the embryo of the corn had a higher concentration of spermine compared to the endosperm. For dietary purposes, when a higher concentration of spermine is desired, the embryo of the corn could be used. On the contrary, when reduced levels of spermine are needed, the endosperm could be used. Studies are needed to optimise a process for embryo removal from the corn. Corn was observed to be a significant source of polyamines. Stem Cells inhibitor Fresh sweet corn contained mainly spermidine followed by putrescine. Spermine, cadaverine, phenylethylamine, histamine and agmatine were also present at lower levels. buy IPI-145 The profile and levels of amines differed significantly in canned and dried corn compared to fresh corn. Putrescine was the prevalent amine in canned corn whereas spermine was prevalent in dried
corn. During germination of corn for 5 days, there was a significant increase on the levels of spermidine, spermine and putrescine. The embryo of the corn contained higher spermine levels compared to the endosperm. Based on these results, corn can be a significant source of polyamines in the diet. The different types of corn products available in the market could be used to attend different dietary and nutritional needs.
The authors acknowledge Fundação de Amparo a Pesquisa do Estado de Minas Gerais – FAPEMIG and Conselho Nacional de Desenvolvimento Científico Adenosine e Tecnológico – CNPq for the financial support. They also thank the Seed Producers Association of Minas Gerais, Belo Horizonte, MG, Brazil for supplying the dried and germinated corn seeds. “
“Mushrooms are highly appreciated for their flavour and have been well studied due to their nutritional and medicinal proprieties. Pleurotus mushrooms have high nutritional value and can be a good source of protein, carbohydrates, vitamins, calcium and iron ( Schmidt, Wechsler, Nascimento, & Junior, 2003). Furthermore, these mushrooms have important medicinal properties, such as anti-tumour and immunostimulatory activity, as observed in rats ( Sarangi, Ghosh, Bhutia, Mallick, & Maiti, 2006). The products derived from Pleurotus mycelia can promote biological responses during cancer treatment in humans and have been used as antitumourogenic drugs ( Sarangi et al., 2006). Pleurotus mushrooms have been grown in agro-industrial residues, such as banana waste ( Reddy, Babu, Komaraiah, Roy, & Kothari, 2003), corn, bean and coffee ( Dias, Koshikumo, Schwan, & Silva, 2003), and crop waste, such as soybean straw, cotton stalks, pigeon pea stalks and sugar cane remnants ( Syed, Kadam, Mane, Patil, & Baig, 2009).