CRITERIA OF VEGETABLE JUICES NATURALNESS

The article reveals the international and national quality requirements on vegetable juices. The author studied physical and chemical parameters of tomato juices purchased in the retail outlets in Minsk. Standard and common methods were used during the experiment. The author determined dissolved sol...

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Main Author: Lilishentseva A.N.
Format: Article
Language:English
Published: Kemerovo State University 2017-12-01
Series:Техника и технология пищевых производств
Subjects:
Online Access:http://fptt.ru/stories/archive/47/16.pdf
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author Lilishentseva A.N.
author_facet Lilishentseva A.N.
author_sort Lilishentseva A.N.
collection DOAJ
description The article reveals the international and national quality requirements on vegetable juices. The author studied physical and chemical parameters of tomato juices purchased in the retail outlets in Minsk. Standard and common methods were used during the experiment. The author determined dissolved solids, chloride content, pulp content, titratable acidity, and formol index in ten samples of tomato juice. Formol index value which characterizes the content of amino acid in juice is one of the criteria that determine juice naturalness. It should be within the range 25 - 60 cm3 of 0,1 NaOH/100 cm3. Formol index value for the studied tomato juice samples varies from 28 to 45 cm3 of 0.1 NaOH/100 cm3. The author used enzymatic analysis and atomic absorption spectroscopy to determine the naturalness criteria threshold for cold press pumpkin juice obtained from the local raw materials. The content of sugars isomers, organic acids and formol index can be used as an identification parameter and can be considered as the criteria of naturalness. Detection of fake juices should not be based on a simple examination of the indicators and comparison of the results with the basic quantitative values only. Quality assessment should involve a complex study, including analysis of deviations causes that can be attributed to the properties of raw materials or peculiarities of production conditions.
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publishDate 2017-12-01
publisher Kemerovo State University
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series Техника и технология пищевых производств
spelling doaj-art-c4a2df9580834eb2a0ea7141059bb8c32025-08-20T02:08:42ZengKemerovo State UniversityТехника и технология пищевых производств2074-94142313-17482017-12-0147412312910.21603/2074-9414-2017-4-123-129CRITERIA OF VEGETABLE JUICES NATURALNESSLilishentseva A.N.0Belarus State Economic University, Republic of BelarusThe article reveals the international and national quality requirements on vegetable juices. The author studied physical and chemical parameters of tomato juices purchased in the retail outlets in Minsk. Standard and common methods were used during the experiment. The author determined dissolved solids, chloride content, pulp content, titratable acidity, and formol index in ten samples of tomato juice. Formol index value which characterizes the content of amino acid in juice is one of the criteria that determine juice naturalness. It should be within the range 25 - 60 cm3 of 0,1 NaOH/100 cm3. Formol index value for the studied tomato juice samples varies from 28 to 45 cm3 of 0.1 NaOH/100 cm3. The author used enzymatic analysis and atomic absorption spectroscopy to determine the naturalness criteria threshold for cold press pumpkin juice obtained from the local raw materials. The content of sugars isomers, organic acids and formol index can be used as an identification parameter and can be considered as the criteria of naturalness. Detection of fake juices should not be based on a simple examination of the indicators and comparison of the results with the basic quantitative values only. Quality assessment should involve a complex study, including analysis of deviations causes that can be attributed to the properties of raw materials or peculiarities of production conditions.http://fptt.ru/stories/archive/47/16.pdfjuiceclassificationcriterionidentificationauthenticityfruitvegetablesvegetable juicequality
spellingShingle Lilishentseva A.N.
CRITERIA OF VEGETABLE JUICES NATURALNESS
Техника и технология пищевых производств
juice
classification
criterion
identification
authenticity
fruit
vegetables
vegetable juice
quality
title CRITERIA OF VEGETABLE JUICES NATURALNESS
title_full CRITERIA OF VEGETABLE JUICES NATURALNESS
title_fullStr CRITERIA OF VEGETABLE JUICES NATURALNESS
title_full_unstemmed CRITERIA OF VEGETABLE JUICES NATURALNESS
title_short CRITERIA OF VEGETABLE JUICES NATURALNESS
title_sort criteria of vegetable juices naturalness
topic juice
classification
criterion
identification
authenticity
fruit
vegetables
vegetable juice
quality
url http://fptt.ru/stories/archive/47/16.pdf
work_keys_str_mv AT lilishentsevaan criteriaofvegetablejuicesnaturalness