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2011 | 19 | 1 |

Tytuł artykułu

Changes in physico-chemical properties, polyphenol compounds and antiradical activity during development and ripening of Maoluang (Antidesma bunius L. Spreng) fruits

Warianty tytułu

PL
Zmiany wlasciwosci fizyko-chemicznych, zawartosci polifenoli oraz aktywnosci przeciwrodnikowej w owocach antydesmy wawrzynolistnej (Antidesma bunius L. Spreng) podczas ich rozwoju i dojrzewania

Języki publikacji

EN

Abstrakty

EN
Influence of fruit development and ripening on the changes in physico-chemical properties, antiradical activity and the accumulation of polyphenolic compounds were investigated in Maoluang fruits. Total phenolics content (TP) was assayed according to the Folin-Ciocalteu method, and accounted for 19.60-8.66 mg GAE/gf.w. The TP gradually decreased from the immature to the over ripe stages. However, the total anthocyanin content (TA) showed the highest content at the over ripe stage, with an average value of 141.94 mg/100 g f.w. The antiradical activity (AA) of methanolic extracts from Maoluang fruits during development and ripening were determined with DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging. The highest AA was ob­served at the immature stage accompanied by the highest content of gallic acid and TP. Polyphenols were quantified by HPLC. The level of procyanidin B2, procyanidin B1, (+)-catechin, (-)-epicatechin, rutin and tran-resveratrol as the main polyphenol compounds, increased during fruit development and ripening. Other phenolic acids such as gallic, caffeic, and ellagic acids significantly decreased (p < 0.05) during fruit development and ripening. At over ripe stage, Maoluang possess the highest antioxi- dants. Thus, the over ripe stage would be the appropriate time to harvest when taking nutrition into consideration. This existing published information provides a helpful daily diet guide and useful guidance for industrial utilization of Maoluang fruits.
PL
Badania miały na celu poznanie zmian wlaściwości fizyko-chemicznych, zawar­tości polifenoli i aktywności przeciwrodnikowej podczas rozwoju i dojrzewania owo­ców antydesmy wawrzynolistnej. Zawarto ść fenoli ogółem (TP), oznaczana metodą Folina-Ciocalteu, stopniowo zmniejszała się od 19,60 do 8,66 mg GAE/g f.w. wraz z przechodzeniem od stadiów niedojrzałości do przejrzalości. Natomiast zawartość antocyjanów ogółem (TA) była najwyższa u przejrzafych owoców, gdzie średnia jej wartość wyniosła 141,94 mg/100 gf.w. Aktywność przeciwrodnikową(AA) ekstrak­tów metanolowych z owoców antydesmy wawrzynolistnej oznaczano przez redukcj ę rodników DPPH (2,2-difenylo-1-pikrylohydrozylu). Najwyższą aktywno ść przeciw- rodnikową, której towarzyszył wysoki poziom TP, w tym kwasu galusowego, zaob­serwowano u roślin niedojrzałych. Polifenole były oznaczane za pomocą HPLC. W trakcie rozwoju i dojrzewania owoców poziom procyjanidyny B2, procyjanidyny B1, (+)-katecholu, (-)-epikatecholu, rutyny oraz trans resweratrolu jako głównych polifenoli zwiększył się. Natomiast poziom pozostałych hydroksykwasów aromatycz­nych, takich jak kwas galusowy, kawowy i elagowy znacząco spadł (p < 0,05). Owo­ce zawierały najwięcej przeciwutleniaczy, gdy były przejrzałe. Dlatego też okres, w którym owoce te są przejrzałe jest najlepszy do zbioru, biorąc pod uwagę ich wł- ściwości odżywcze. Wyniki te dostarczają informacji dotyczących zastosowania owo­ców antydesmy wawrzynolistnej w codziennej diecie oraz przemysłowego ich wyko­rzystania

Wydawca

-

Rocznik

Tom

19

Numer

1

Opis fizyczny

p.85-99,ref.

Twórcy

autor
  • Laboratory Equipment Center and 2Department of Biotechnology Faculty of Technology, Mahasarakham University, Maha Sarakham Province 44000, Thailand
autor

Bibliografia

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Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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