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Stabilność i cechy reologiczne emulsji napojowych z dodatkiem gumy ghatti

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Warianty tytułu
EN
Stability and rheological properties of beverage emulsions with additive of ghatti gum
Języki publikacji
PL
Abstrakty
PL
W pracy badano wpływ stężenia gumy ghatti (2 -10%) na stabilność i cechy reologiczne emulsji napojowych. Stabilność emulsji oznaczono metodą turbidymetryczną (indeks wielkości cząstek fazy zdyspergowanej i zmętnienie) oraz metodą dyfrakcji laserowej. Test przechowalniczy emulsji napojowych oraz napojów prowadzono przez 12 tygodni. Oznaczano lepkość względną emulsji. Stwierdzono, że guma ghatti tworzy stabilne, co najmniej przez trzy miesiące, emulsje napojowe. Emulsje zawierające mniejsze krople olejowe charakteryzowały się większą względną lepkością i stabilnością. Bardziej stabilne emulsje otrzymano stosując dodatek gumy ghatti w ilości 2-4% niż dodatek 6-10%.
EN
The influence of ghatti concentration (2 — 10 wt%) on the stability and rheology of beverage emulsions was studied. The stability of emulsions was determined by turbidimetric method (the droplet size index of dispersed phase and opacity) and laser scattering method. Storage test of emulsions and beverages was carried out for 12 weeks. The relative viscosity of the emulsions was determined. It was found that ghatti gum forms beverage emulsions which are stable for three mouths or more. The emulsions containing smaller droplets demonstrated larger relative viscosity and stability. More stable emulsions were obtained by using ghatti gum in amount 2 - 4 % in comparison to those obtainedfor 6-10%.
Rocznik
Strony
21--24
Opis fizyczny
Bibliogr. 23 poz., rys., tab.
Twórcy
Bibliografia
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  • [5] Chanamai R., McClements D. J.: Depletion flocculation of beverage emulsions by gum arabie and modified starch, 2001, J. Food Sci. 66 (3), 457 463.
  • [6] Chanamai R., McClements D.J.: 0,6 0,7Comparisonofgum arabie, modified starch and whey protein isolate as emulsifiers: influence of pH, CaCl2 and temperaturę, J. Food Sci. 2002,67,1,120-125.
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  • [12] Klinkesorn U., Sophanodora R, Chinachoti R, McClements D.J.: Stability and rheology of corn oil-in-water emulsions containing maltodextrin, Food Research International, 2004,37,851-859.
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  • [15] McClements D.J., Coupland J.N.: Theory of droplet size distribution measurements in emulsions using ultrasonic spectroscopy, Colloids and Surface A, 1996, 117, 161-170.
  • [16] Onsaard E., Vittayanont M., Srigam S., McClements D.J.: Comparison of properties of oil-in-water emulsions stabilized by coconut cream proteins with those stabilized by whey protein isolate, Food Research International, 2006,39,78-86.
  • [17] Quemada D., Berli C: Energy of interaction in colloids and its implications in rheological modelling, Advances in Colloid and Interface Science, 2002,98,51 -85.
  • [18] Reineccius G.: Source Book of Flavors, Chapman & Hall, New York, London, 1994,572-577,718-720.
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  • [22] TischerC.A., Iacomini M.,WagnerR., GorinP.A.J.: New structural features of the polysaccharide from gum ghatti (Anogeissus latifola), Carbohydrate Research, 2002, 337,2205-2210.
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPL8-0003-0004
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