Influence of gaz modified medium on the safety of flour confectionery products

2021 ◽  
pp. 91-94
Author(s):  
Александра Владимировна Матюнина ◽  
Лариса Валентиновна Зайцева ◽  
Николай Борисович Кондратьев ◽  
Алла Евгеньевна Баженова ◽  
Максим Владимирович Осипов

С целью увеличения срока годности мучных кондитерских изделий проведены исследования влияния газовой модифицированной среды на их органолептические свойства. Изделия были упакованы в лотки из полипропилена и среднебарьерную многослойную пленку на основе полиэтилентерефталата под запайку лотков. Газовая модифицированная среда была представлена смесью углекислого газа и азота в соотношениях 20:80; 30:70; 50:50. Хранение образцов осуществлялось в течение 60 дней. Установлено, что замена воздушной среды на смесь углекислого газа и азота положительно влияла на их сохранность. Показано, что основным критерием сохранности изделий являются органолептические показатели, изменение которых происходят значительно раньше появления признаков микробиологической порчи. Использование газовой модифицированной среды при упаковывании кондитерских изделий позволило увеличить срок годности изделий в 3-6 раз. Наилучшие результаты были получены при использовании газов в соотношении 50:50. Таким образом, использование газовой модифицированной среды может рассматриваться в качестве альтернативы применению пищевых добавок для продления срока годности упакованных мучных кондитерских изделий. In order to increase the shelf life of flour confectionery products, studies have been conducted on the effect of a modified gas medium on their organoleptic properties. The products were packed in trays made of polypropylene and a medium-barrier multilayer film based on polyethylene terephthalate for sealing the trays. The gas modified medium was represented by a mixture of carbon dioxide and nitrogen in the ratios 20:80; 30:70; 50:50. The samples were stored for 60 days. It was found that the replacement of the air environment with a mixture of carbon dioxide and nitrogen positively affected their safety. It is shown that the main criterion for the safety of products are organoleptic properties, the change of which occurs much earlier than the appearance of signs of microbiological spoilage. The use of a modified gas medium in the packaging of confectionery products allowed to increase the shelf-life of products by 3-6 times. The best results were obtained when using gases in a 50:50 ratio. Thus, the application of a modified gas medium can be considered as an alternative to the use of food additives to extend the shelf-life of packaged flour confectionery products.

2021 ◽  
Vol 17 (Especial) ◽  
pp. 19-27
Author(s):  
Nelcy Aguilar Sasari ◽  
Milenka Alessandra Fernández Ledezma ◽  
Tania Araujo-Burgos

Additives are necessary substances to improve the nutritional and organoleptic properties and the shelf life of processed food. In addition, their use is regulated, and it must be declared on the food labels. Thus, the objective of this research was to determine the frequency of food additives in processed baby products in Cochabamba metropolitan area (Bolivia). Data were collected by label reading and a frequency analysis was performed by additives and by functional group. 26 baby products were found where 41 food additives were identified with an occurrence of 256 times, and a mean of 9,8 additives per product. Moreover, the functional groups most widely used are antioxidants and colorants. Finally, the most frequent additives are mostly harmless, except for sodium nitrate and copper sulfate.


2016 ◽  
Vol 22 (1) ◽  
pp. 43 ◽  
Author(s):  
SARI INTAN KAILAKU ◽  
BUDI SETIAWAN ◽  
AHMAD SULAEMAN

<p>The obstacle in developing coconut water-based product is its easily altered properties. Ultrafiltration and ultraviolet processing are potential to obtain a longer shelf life for coconut water drink without altering its nutritional values and unique organoleptic properties, unlike other processing techniques e.g. pasteurization and ultra high temperature. Shelf-life estimation experiment showed that ultrafiltration-and- ultraviolet-processed coconut water without any addition of food additives can be stored for 51 days in 00C. The objective of this research was to evaluate the effects of ultrafiltration and ultraviolet treatments on the nutritional, physicochemical and organoleptic properties of coconut water drink. The experiments were carried out at Food Analysis Laboratory, Indonesian Center of Agricultural Postharvest Research and Development, on January-April 2015. Coconut water was flown through the ultrafiltration membrane unit and ultraviolet light unit, samples were collected in three repetitions. Nutritional composition and physicochemical properties of fresh coconut water (FCW) and coconut water drink obtained from ultrafiltration and ultraviolet process (CUU) were evaluated and compared. Organoleptic analysis was done by 20 panelists, observations included quality hedonic (aroma, sweetness, saltiness, sourness and turbidity), and acceptance (preferance and ranking test), comparing FCW and CUU with commercial coconut water drink (CWD). CUU showed indistinguishable nutritional composition and physicochemical characteristics from FCW (p&gt;0,05), except on total sugar (p=0,049), clarity (p=0,001), L* (lightness) (p=0,000) and b* (yellowish) (p=0,002). Panelists gave CUU a statistically equal rank to FCW, and better than CWD. The organoleptic characteristics of CUU were concluded as relatively same in saltiness and aroma as FCW, and less intense in sweetness and turbidity compared to CWD. After 10 days storage, panelists level of liking was higher for CUU compared to CWD in color (p=0,004) and general appearance (p=0,016).</p><p>Keywords: coconut water, nutritional composition, organoleptic properties ultrafiltration, ultraviolet</p>


Author(s):  
P.Y. Livak ◽  
V.I. Tereshchenko ◽  
Yu.V. Polukhin ◽  
V.V. Viatokha

The article examines some aspects of the use of sugar substitutes in food in the context of their impact on the health of citizens. Given that food additives, and especially sugar substitutes, have become an integral part of most foods, the question arises as to their impact on the health of consumers of these foods. Literature data and interviews of specialists in the field of production and use of food additives were studied. Classifications of food additives provided by the legislation of Ukraine in the context of their influence on physicochemical, organoleptic properties, shelf life and other qualitative characteristics of food products are carried out. Particular attention is paid to the possible harmful effects of sugar supplements on human health. Of these series, dyes that should be avoided for use by children are singled out. The conclusion and recommendations on the adequate use of food additives-sugar substitutes in food in order to prevent their harmful effects on the health of citizens of Ukraine.


2017 ◽  
Vol 44 (12) ◽  
pp. 19-22
Author(s):  
A.S. Shabaev ◽  
S.Yu. Khashirova ◽  
A.K. Mikitaev ◽  
I.V. Musov ◽  
A.L. Slonov

The diffusion cell to a Tsvet-800 chromatograph for determining the gas permeability of polymeric materials has been optimised. The oxygen permeability and the carbon dioxide permeability of polymer composites based on polyethylene terephthalate and polybutylene terephthalate have been studied. The optimum compositions, combining high barrier properties and a low acetaldehyde content, have been found.


2017 ◽  
Vol 08 (04) ◽  
Author(s):  
Vladimir Dimche Kitanovski ◽  
Dessislava Borislavova Vlahova Vangelova ◽  
Stefan Georgiev Dragoev ◽  
Hristo Nikolov Nikolov ◽  
Dessislav Kostadinov Balev

2013 ◽  
Vol 2 (1) ◽  
pp. 41 ◽  
Author(s):  
C. A. Onyango ◽  
S. O. Ochanda ◽  
M. A. Mwasaru ◽  
J. K. Ochieng ◽  
F. M. Mathooko ◽  
...  

<p>Sorghum and millet and their products require specialized treatment in order to improve their nutritive value, organoleptic properties and shelf-life. They contain anti-nutrients which are the major phytochemicals which negatively affects their nutritive values. The phytochemicals of concern include tannins and phytates, which interfere with mineral absorption, palatability and protein digestibility. Malting and fermentation treatments were applied to reduce the anti-nutrients, improve protein digestibility, and acidity to increase the products shelf life. The effects of malting and fermentation on the cereals nutritive value and anti-nutrient reduction were studied and evaluated for a period of 8 days. A treatment combining malting for 3 days and fermentation for 2 days respectively both at room temperatures (25°C) was employed. Tannins and phytates were significantly reduced (p ? 0.05) by malting and fermentation. Protein digestibility was significantly (p ? 0.05) improved by malting and fermentation treatments; malted cereals digestibility ranged between 34.5-68.1% while the fermented flours protein digestibility range was 97.4-98.3%. The pH values were lowered to below 4.0, a level at which they could effectively inhibit spoilage microorganisms at the end of the fermentation period. A combination of optimum time treatments of malting and fermentation for 3 days and 2 days respectively were effective in reducing tannins and phytates and improving protein digestibility of the cereals.</p>


Author(s):  
Fernando Cebola Lidon ◽  
Diana Daccak ◽  
Paula Scotti-Campos ◽  
Maria Manuela Silva ◽  
Ana Sofia Bagulho ◽  
...  

The current trend of large-scale bread production is to facilitate processing at an industrial level, considering the use of flour mixtures with different chemical and technological parameters and incorporating food additives. Accordingly, costs can be minimized, whereas the quality and the shelf-life of the final product might increase, but a full characterization of the flours that must be used and the selection of the food additives to be incorporated into the dough is required. In this context, three Portuguese wheat flour varieties were evaluated (FariRamos, Nacional and AJMiranda), as well as two types of food additives with the aim to increase bread shelf-life. In these flours, the levels of K, S, P, Ca and Cl prevailed, but the moisture and ash contents of FariRamos were the highest and lowest, respectively. The colour of all flours was generally within the desired standard values. Nacional flour contained a higher fat content, but all the flours showed a higher relative abundance of linoleic acid (C18:2), followed by palmitic acid (C16:0) and oleic acid (C18:1). AJMiranda flour revealed a higher content of wet gluten and protein, but the SDS sedimentation index showed a higher value in the FariRamos flour. The fall index, which directly monitors the activity of the α-amylase enzyme, showed a lower value in AJMiranda and Nacional. Through farinograph and alveographyc analysis it was found that FariRamos has a tenacious gluten, but AJMiranda and Nacional had a balanced gluten, yet all of them can be classified as medium flours. Bread making with a mix of FariRamos, AJMiranda and Nacional flours and incorporating preservative food additives revealed the highest shelf-life (11-days) with methyl p-hydroxybenzoate [0.05 %] and benzoic acid [0.1 %], but the colour of the breads showed a relationship of intensity of white colour that depended on the additive used. At the end of the shelf-life, molds of the Eurotium, Trichoderma and Cladosporium genera developed in the bread. It was concluded that the chemical and technological approach applied in the characterization of the flour varieties, can be directly used to define the quality and shelf-life in the bakery industry, allowing the establishment of minimum commercialization prices.


2008 ◽  
Vol 15 (4) ◽  
pp. 414 ◽  
Author(s):  
E. GONZÁLEZ-FANDOS ◽  
A. SIMON JIMENES ◽  
V. TOBAR PARDO

The sensory and microbiological quality of sliced mushrooms (Agaricus bisporus L.) packaged in films of perforated and non-perforated PVC and stored at 3 and 9ºC, was studied. The carbon dioxide and oxygen content inside the packages, colour, weight loss, sensory attributes, mesophiles, Pseudomonas, Enterobacteriaceae, aerobic and anaerobic spore formers were determined. The atmosphere generated with the perforated PVC film was similar to that of air atmosphere at 3 or 9ºC. T.he non-perforated PVC film generated inside the packages CO2 : O2 concentrations of 3.4% : 8.1% at 3ºC and CO2 : O2 concentrations of 4.5% : 0.15% at 9ºC. Browning of mushrooms was lower at 3 than at 9ºC. The quality of sliced mushrooms packaged in perforated PVC and stored at 3ºC was adequate after 9 days. However, at 9ºC, the slice deformation and brown blotches incidence were severe after 9 days. The atmosphere generated with non-perforated PVC inhibited aerobic microorganism growth compared to mushrooms packaged in perforated PVC. At 3ºC, the shelf life of mushrooms packaged in non perforated PVC was around 13 days. However, the extremely low O2 atmospheres generated at 9ºC was accompanied by off-odours and growth of anaerobic spore formers, although the appearance of sliced mushrooms was acceptable.;


Author(s):  
Muhammad Zeeshan Akram ◽  
Sema Yaman Fırıncıoğlu ◽  
Hassan Jalal ◽  
Sibel Canoğulları Doğan

Public concern on the excessive use of synthetic food additives has raised a great interest to use natural products due to their potential in food and pharmacological industries. Nowadays, chemical food additives are questioned due to their contribution to the health risks and environmental impacts. Among natural additives, essential oils (EOs) are extracted from aromatic compounds and responsible for their biological activities namely antimicrobial and antioxidant capacity. Incorporation of bio-active compounds particularly EOs directly in food or edible/biodegradable food packaging seems to enhance the shelf life and quality characteristics of processed food and protect the consumers against oxidative and bacterial deterioration effects. However, inclusion of EOs in films/coatings for food packaging may put some effects on various properties (optic, tensile and etc.), which can affect the consumer acceptability. Their addition in food can cause some allergic and hypersensitivity reactions to the individuals who use them often. This paper aims to review the latest findings on the use of EOs incorporated with edible/biodegradable films and coatings to enhance the shelf life and quality of the food. Further investigations about essential oils are expected to clarify their exact action and build up their standard use in food industry.


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