The PE showed an outstanding performance against the tested vaginal yeast strains, and could be included among the novel therapeutic options for the treatment of vulvovaginal candidiasis.
Resumo: Nosso objetivo é mostrar e discutir os dados mais relevantes sobre a abordagem de síntese e a caracterização de hidrogéis à base de quitina e derivados de quitina, como a quitosana, bem como suas aplicações em diversas tecnologias de materiais. A relevância atual e futura dos materiais à base de quitina, quitosana e derivados foi verificada pelo impressionante número de publicações científicas e tecnológicas (tanto papéis como patentes) que aparecem no dia-a-dia. Os hidrogéis, que apresentam propriedades semi-líquidas e semi-sólidas, tornaram-se uma grande promessa para aplicações onde o uso eficiente da água é essencial para melhorar as propriedades físico-químicas dos solos áridos. Eles também são eficazes no tratamento de águas contaminadas com corantes, chumbo cádmio, mercúrio, níquel e assim por diante, minimizando o impacto ambiental.
Palavras-chave:Hidrogel; polissacarídeo; polímero superabsorbente; condicionador de solo; recuperação de água.
AbstractOur purpose is to show and discuss the most relevant data on the synthesis approach and the characterization of hydrogels based on chitin and chitin-derivatives, such as chitosan, as well as their applications in several materials technologies. The current and future relevance of materials based on chitin, chitosan and derivatives have been verified by the impressive number of scientific and technological publications (both papers and patents) that appears day-by-day. The hydrogels, which show half liquid-like and half solid-like properties, have become a great promise for applications where the efficient use of water is essential to improve the physical-chemical properties of the arid soils. They are also effective in treatment of waters contaminated with dyes, lead cadmium, mercury, nickel, and so on, minimizing the environmental impact.
Basidiomycetes can bioaccumulate high iron contents, but there are few studies on iron availability from the mycelial biomass in order to support their use as an iron-enriched fungal food. This study aimed to evaluate the in vitro iron bioaccumulation and availability in the mycelial biomass of edible and medicinal basidiomycetes grown in two distinct culture media.
Lentinus crinitus
,
Ganoderma lucidum
,
Schizophyllum commune
,
Pleurotus ostreatus
,
Pleurotus eryngii
,
Lentinula edodes
, and
Agaricus subrufescens
were grown in liquid culture medium of malt extract or sugarcane molasses to obtain iron-bioaccumulated mycelial biomass.
P. ostreatus
was the fungus that most bioaccumulated iron, followed by
S. commune
, and
P. eryngii
; they also had the highest mycelial biomass growth and iron transfer from the culture medium to the mycelial biomass. Mycelial iron availability is species-specific, regardless of the culture medium and the iron bioaccumulation capacity of the fungus in the mycelial biomass. Mycelial biomass of
S. commune
, followed by
G. lucidum
,
P. ostreatus
, and
P. eryngii
, associated with molasses culture medium, are the best choice for the production of iron-enriched mycelial biomass.
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