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STEVIOSIDE AS A REPLACEMENT OF SUCROSE IN PEACH JUICE: SENSORY EVALUATION (2001)

PARPINELLO, GIUSEPPINA PAOLA ; VERSARI, ANDREA ; CASTELLARI, MASSIMO ; [et al.]

Oxford, UK : Blackwell Publishing Ltd

Journal of sensory studies 16 (2001), S. 0

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ISSN: 1745-459X

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Notes: The suitability of stevioside as a sweetener in peach juice was investigated. Comparison between stevioside and sucrose in terms of sweetness, sweet and bitter aftertastes were determined both in water and peach juice. The results demonstrated that 160 mg/L of stevioside may replace 34 g/L of sucrose in juice, with a 25% decrease in calories, without affecting the sensory characteristics of the product. Synergistic and inhibitory effects between sucrose and stevioside were also monitored at different stevioside concentration. A new juice formulation sweetened with a binary mixture of stevioside (160 mg/L) and sucrose (56 g/L) was not significantly different in terms of desirability from a reference product sweetened with 9% sucrose.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1111/j.1745-459X.2001.tb00314.x

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Liquid-liquid extraction of silylated polyalcohols from vinegar, and their determination by capillary GC (1994)

Antonelli, Andrea ; Carnacini, Alberta ; Versari, Andrea

Weinheim : Wiley-Blackwell

Journal of High Resolution Chromatography 17 (1994), S. 553-555

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ISSN: 0935-6304

Keywords: Capillary GC ; Liquid - liquid extraction ; Vinegar ; Polyalcohol analysis ; Chemistry ; Analytical Chemistry and Spectroscopy

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: A capillary gas chromatographic method has been developed for the determination of glycerol, erythritol, arabitol, sorbitol, and inositol in vinegar. After addition of phenyl-β-glucopyranoside as internal standard, the sample was then dried and silylated. The analysis was performed both on the crude silylated sample and after liquid - liquid extraction. The repeatability of the two methods was evaluated on twenty three different types of vinegar and the extraction did not seriously affect the analysis. Extraction of the TMS-ethers enables elimination of a large number of interfering substances such as acids and polyphenols and so acts as a purification of the sample.

Additional Material: 1 Ill.