scholarly journals HPLC-DAD-qTOF Compositional Analysis of the Phenolic Compounds Present in Crude Tomato Protein Extracts Derived from Food Processing

Molecules ◽  
2021 ◽  
Vol 26 (21) ◽  
pp. 6403
Author(s):  
Ana Miklavčič Višnjevec ◽  
Paul W. Baker ◽  
Kelly Peeters ◽  
Matthew Schwarzkopf ◽  
Dominik Krienke ◽  
...  

The conversion of raw fruits and vegetables, including tomatoes into processed food products creates side streams of residues that can place a burden on the environment. However, these processed residues are still rich in bioactive compounds and in an effort to valorize these materials in tomato by-product streams, the main aim of this study is to extract proteins and identify the main phenolic compounds present in tomato pomace (TP), peel and skins (TPS) by HPLC-DAD-ESI-QTOF. Forty different phenolic compounds were identified in the different tomato extracts, encompassing different groups of phenolic compounds, including derivatives of simple phenolic acid derivatives, hydroxycinnamoylquinic acid, flavones, flavonones, flavonol, and dihydrochalcone. In the crude protein extract (TPE) derived from tomatoes, most of these compounds were still present, confirming that valuable phenolic compounds were not degraded during food processing of these co-product streams. Moreover, phenolic compounds present in the tomato protein crude extract could provide a valuable contribution to the required daily intake of phenolics that are usually supplied by consuming fresh vegetables and fruits.

2021 ◽  
Vol 26 (5) ◽  
pp. 4383
Author(s):  
I. A. Viktorova ◽  
V. L. Stasenko ◽  
N. G. Shirlina ◽  
G. A. Muromtseva ◽  
M. A. Livzan

Aim. To assess the prevalence of eating habits among the Omsk Oblast population and their association with cardiovascular diseases (CVDs) according to the ESSERF2 study.Material and methods. In the ESSE-RF2 study with persons aged 25-64 years (random sample, n=1648), the dietary habits of 21 food groups were assessed using the questionnaire method. Results. Insufficient consumption of vegetables and fruits was revealed in 60,0% and 68,7% of the region’s population, which is 1,5-2,2 times higher than amongRussians. The daily intake of cereals is 2,3 times higher than that of pasta, especially in those with CVDs. In the region, poultry is preferred. Poultry at least once a week is consumed by 91,7% of Omsk residents, red meat — 74,8%, and fish — only 35,2% (vs 84,7%, 83,1% and 65,1% in Russians, respectively). The daily intake of liquid dairy products is low. Cheese and cottage cheese is consumed significantly lower than the national average, while legumes — 4 times lower. The presence of confectionery in the daily diet of 40,3% of Omsk residents looks more favorable than the average among Russians. In addition, 50% of the population eat pickles only 1-2 times a month (significantly less than in Russia). On the contrary, 60,9% of Omsk residents regularly (daily-weekly) consume meat and sausages (56,0% in Russia, p=0,000). Omsk residents with CVDs refrain from excessive consumption of sugar, other sweets, meat and sausages, pickles and marinades. They are almost 2 times more likely to exclude red meat from the diet or reduce its daily consumption than people without CVDs. Salting of cooked food, consumption of vegetables and fruits, fish, seafood and dairy products practically did not depend on CVDs.Conclusion. The food habits of Omsk residents differs from the national one in many products. People with CVDs have unfavorable eating habits: reduced consumption of fresh vegetables, fruits, fish, seafood, legumes and nuts. Patients do not change their diet in favor of cardioprotective products and decrease in adding more salt. Although, they more often refuse meat and sausages, pickles, marinades, sweets, and pasta, and increase the consumption of cereals.


2016 ◽  
Author(s):  
David Just ◽  
Amir Heiman

Abstract The debate about whether to reduce import barriers on fresh produce in order to decrease the cost of living and increase welfare or to continue protecting the local agricultural sector by imposing import duties on fresh vegetables and fruits has been part of the Israeli and the US political dialog. The alternative of building a strong local brand that will direct patriotic feelings to support of the agricultural sector has been previously discussed in the literature as a non-tax barrier to global competition. The motivation of consumers to pay more for local fresh fruits and vegetables are better quality, environmental concerns, altruism, and ethnocentrism. Local patriotic feelings are expected to be stronger among national-religious consumers and weaker among secular left wing voters. This project empirically analyzes consumers’ attitude toward local agricultural production, perceptions of the contribution of the agricultural sector to society and how these perceptions interact with patriotic beliefs and socio-political variables perhaps producing an ethnocentric preference for fruits and vegetables. This patriotic feeling may be contrasted with feelings toward rival (or even politically opposing) countries competing in the same markets. Thus geo-political landscape may help shape the consumer’s preferences and willingness to purchase particular products. Our empirical analysis is based on two surveys, one conducted among Israeli shoppers and one conducted among US households. We find strong influences of nationalism, patriotism and ethnocentrism on demand for produce in both samples. In the case of Israel this manifests itself as a significant discount demanded for countries in conflict with Israel (e.g., Syria or Palestine), with the discount demanded being related to the strength of the conflict. Moreover, the effect is larger for those who are either more religious, or those who identify with right leaning political parties. The results from the US are strikingly similar. For some countries the perception of conflict is dependent on political views (e.g., Mexico), while for others there is a more agreement (e.g., Russia). Despite a substantially different religious and political landscape, both right leaning political views and religiosity play strong roles in demand for foreign produce. 


Author(s):  
Dan Nicolae Manea ◽  
Anişoara Aurelia Ienciu ◽  
Ramona Ştef ◽  
Iosefina Laura Şmuleac ◽  
Iosif Ion Gergen ◽  
...  

In this study, we conducted a noncarcinogenic risk assessment of consuming vegetables and fruits grown in two old mining areas from the Banat area of Southern Carpathians (Romania), Moldova Veche (M) and Rusca Montana (R) and in a nonpolluted reference area located near the village of Borlova (Ref). Concentrations of Fe, Mn, Zn, Cu, Ni, Cd and Pb in soils and commonly eaten vegetables and fruits were measured and used for calculating the weighted estimated daily intake of metals (WEDIM), the target hazard quotients (THQ) and the total target hazard quotients (TTHQ) for normal daily consumption in adults. Levels of certain metals in soils and plants from the R area (Pb) and the M area (Cu) were higher than those measured in the Ref area—and often exceeded normal or even alert-threshold levels. TTHQs for the R area (1.60; 6.03) and the M area (1.11; 2.54) were above one for leafy vegetables and root vegetables, respectively, suggesting a major risk of adverse health effects for diets, including these vegetal foodstuffs. Moreover, THQ and TTHQ indicated a higher population health risk for the R area than for the M area, with the Ref area being a safe zone.


2018 ◽  
Vol 6 ◽  
pp. 33-40
Author(s):  
Raisa Pavlyuk ◽  
Viktoriya Pogarska ◽  
Vadym Pavlyuk ◽  
Aleksey Pogarskiy ◽  
Iuliia Kakadii ◽  
...  

The aim of the work is to develop a new type of producing healthy fruit-vegetable ice-cream-sorbet with the record BAS content using fresh vegetables and fruits as raw materials (especially, berries: blackberry, cherry, apricots, sea buckthorn, fruits – apples, lemons with zest, vegetables – spinach, olives, pumpkin) and innovative technological methods, such as cryogenic “shock freezing” and low temperature comminution. There was offered and developed a new way of preparing healthy fruit-vegetable ice-cream-sorbet, based on using cryogenic “shock” freezing and fine-dyspersated comminution of vegetables and fruits as an innovative method of structure creation and getting sorbets with the record BAS content. The complex effect of these methods results in activation and extraction of hidden BAS from fruits and vegetables in the free form, and also in pectin transformation from the inactive form into the active one. A peculiarity of producing sorbets is the use of only natural ingredients (fruits, berries, vegetables) and also the absence of artificial food supplements (stabilizers, stiffeners, emulsifiers, synthetic coloring agents and so on). The new method allows to preserve vitamins and other BAS of initial raw materials completely in sorbets. At the same time it gives a possibility to extract from raw materials hidden inactive BAS forms, bound in nanocomplexes with biopolymers and mineral substances, into the free, easily-assimilated nanoform. The mass share of BAS in sorbets is 2,5…3,5 times more that in fresh fruits and vegetables that is controlled by standard chemical methods. At the same time the new method allows to extract and transform into the soluble form pectin substances that are in fruits and vegetables in the inactive hidden form more completely (by 70 %). The mass share of soluble pectin in sorbets is 3,0…5,0 times more than in fresh raw materials. The following fruits and vegetables were chosen at preparing sorbets: apples, blackberry, cherry, apricots, sea buckthorn, pumpkin, spinach, olives, lemon with zest. They are known for their treating-prophylactic properties and first of all favor strengthening of the human organism’s immunity. The recipes of healthy sorbets were developed – 3 types of fruit-vegetable ice-cream with chlorophyll-containing, carotene-containing and anthocyan-containing fruits and vegetables. Natural fruit-vegetable raw materials at preparing ice-cream-sorbets act as five in one: a source of BAS, stiffeners, structure-creators, coloring agents and aromatizers. New types of sorbets are in the nanosize form and exceed analogues by BAS. Technological regimes of producing ice-cream-sorbets are developed at the stand semi-industrial equipment.


2020 ◽  
Vol 103 (4) ◽  
pp. 915-924
Author(s):  
Manel Issaoui ◽  
Amélia Martins Delgado ◽  
Giorgia Caruso ◽  
Maria Micali ◽  
Marcella Barbera ◽  
...  

Abstract Phenols or phenolics are a class of compounds that have one or more hydroxyl groups attached to a 6-carbon aromatic ring, they occur as plant secondary metabolites, having in common the antioxidant activity. Their average daily intake varies widely around the world. Many researchers consider coffee, tea, wine, cocoa products, fruits and vegetables as the main sources of polyphenols in different diets. However, spices and culinary herbs have been referred to as the foods richest in polyphenols. Despite spices and culinary herbs are used in small amounts as seasonings, their contribution to the dietary supply of phytonutrients should not be disregarded. A diet rich in a variety of polyphenols (and other phytonutrients) has potential health benefits, namely in the prevention of chronic diseases and cancer. In addition, flavor and color are the most important factors for the selection of food by consumers. A multitude of endogenous food compounds, including phenolics, are involved in food flavor. The presence of phenolic compounds in the food matrix has been mainly associated with the perception of bitter taste and tactile sensation of astringency. However, these compounds can also impact the color and aroma notes of fruits and vegetables. Thus, understanding the sensory impact of these substances and relationships with consumers’ approaches towards phenolic-rich fruits and vegetables may help find strategies to increase the consumption of such foods. A well-known example of a tasty, healthy and sustainable dietary model is the Mediterranean Diet. In this study, we summarize the dietary intake of some polyphenols from different dietary patterns around the world and the contribution of natural phenolic compounds to the flavor of food and beverages, in particularly those associated to the Mediterranean Diet.


2021 ◽  
Vol 54 (3-4) ◽  
pp. 396-407
Author(s):  
Mehmet Tümay ◽  
Halil Murat Ünver

Fruits and vegetables ripen at certain times of the year and must be ripe for consumption. However, in the short-term ripening period, some of the fresh vegetables and fruits that are more than the consumable amount deteriorate before they can be consumed. Picking up fruits and vegetables when they are ripe and drying the surplus for later use is the most common storage method. In recent years, where technology has developed rapidly, instead of drying in the sun, solutions are produced in which the drying processes are managed automatically by using the drying kinematics of the products. The most recent techniques manage the drying process by measuring the weight of the wet and dried products during heating. Also, different types of ovens such as microwave ovens are tried to increase the efficiency of the drying process. These are rather complex solutions. In this study, a smart system that manages the drying process in real-time by using the humidity in the environment instead of weight together with the drying kinematics of the product is designed. So the complexity of the system is simplified. Also, the total duration of the drying process is exactly estimated by using the moisture content in the environment and the drying model of the product. In the study, firstly, data on the drying stage were collected with the experiments made for each product. These data were processed in a Matlab environment and a drying model with a curve fitting method was developed for each product. The drying models developed in the study were loaded into the processor of the smart oven and the entire drying process was managed in real-time. With the developed system solution, when the process is started, the drying time is estimated according to the amount processed and the type of product, and the drying time of the drying process is estimated by using the moisture content in the environment and the drying model of the product. In this way, pre-drying and post-drying stages can be planned.


Author(s):  
N. S. Karamnova ◽  
S. A. Shalnova ◽  
A. D. Deev ◽  
V. I. Tarasov ◽  
Yu. A. Balanova ◽  
...  

Smoking influences nutrition type and food-related behavior of the smokers.Aim. To evaluate the specifics of adult population of Russian Federation nutrition type according to smoking status.Material and methods. Analysis was done on the representative selection of nonorganized male and female population, age 25-64 y. o. (n=22258, of those males 8519, females 13698) from 13 regions of Russia. Response about 80%. Nutrition character was assessed by the rates of food items consumption with quantitative assessment in several units. Smoking status was assessed with questionnaire with selection to the groups: non-smokers, past smokers, current smokers.Results. Most prominent differences were found on the intake of fresh vegetables and fruits, of curd, cheese, red meat, sausages, pastry and behavior of adding salt to cooked meals. In comparison with the smokers, non-smokers do more often take curd — by 38%, vegetables and fruits — by 30%, and rarer — red meat, by 25%, and sausages, by 21%; they add salt rarer — by 26%. However, pastry and sweets they eat more commonly, by 19%. With the quittance from smoking, there is increase of curd in the meals by 20%, fresh fruits and vegetables by 19%, and decrease of adding salt behavior by 26%, as by 17% — consumption of sausages and by 11% — high fat dairy (sour cream and cream). Sweets and pastry are consumed only 8% more, that distinguishes the model as healthier and more protective against NCD.Conclusion. Smoking influences negatively food related behavior, shaping the character  of nutrition with higher intake of meat and sausages, saltings and adding salt behavior, lower consumption of vegetables and fruits, that should be considered in prevention events.


2011 ◽  
Vol 77 (14) ◽  
pp. 4829-4838 ◽  
Author(s):  
Ashley Predmore ◽  
Jianrong Li

ABSTRACTFruits and vegetables are major vehicles for transmission of food-borne enteric viruses since they are easily contaminated at pre- and postharvest stages and they undergo little or no processing. However, commonly used sanitizers are relatively ineffective for removing human norovirus surrogates from fresh produce. In this study, we systematically evaluated the effectiveness of surfactants on removal of a human norovirus surrogate, murine norovirus 1 (MNV-1), from fresh produce. We showed that a panel of surfactants, including sodium dodecyl sulfate (SDS), Nonidet P-40 (NP-40), Triton X-100, and polysorbates, significantly enhanced the removal of viruses from fresh fruits and vegetables. While tap water alone and chlorine solution (200 ppm) gave only <1.2-log reductions in virus titer in all fresh produce, a solution containing 50 ppm of surfactant was able to achieve a 3-log reduction in virus titer in strawberries and an approximately 2-log reduction in virus titer in lettuce, cabbage, and raspberries. Moreover, a reduction of approximately 3 logs was observed in all the tested fresh produce after sanitization with a solution containing a combination of 50 ppm of each surfactant and 200 ppm of chlorine. Taken together, our results demonstrate that the combination of a surfactant with a commonly used sanitizer enhanced the efficiency in removing viruses from fresh produce by approximately 100 times. Since SDS is an FDA-approved food additive and polysorbates are recognized by the FDA as GRAS (generally recognized as safe) products, implementation of this novel sanitization strategy would be a feasible approach for efficient reduction of the virus load in fresh produce.


2014 ◽  
Vol 4 (2) ◽  
pp. 64-68
Author(s):  
Aleksandra Michalska

Abstract Nowadays, thanks to greater awareness of society and development of restorative medicine, more and more attention is paid to preventive care. That is caused by the fact that there is little progress for both sexes in the frequency of healthy behavior: girls fall much worse than boys in terms of frequency of physical activity, they do not eat breakfast either; boys do not maintain a healthy diet and are reluctant to eat vegetables and fruits, they often drink high-calorie sodas and less frequently brush teeth. Though with age some improvements in oral hygiene and certain eating behaviors can be noticed. It has been determined that overweight and obesity is a serious problem, as they can contribute to developmental disorders. In this respect it should be the responsibility of teachers to provide individual physical education (according to medical qualifications), prevent various forms of discrimination and bullying among peers, provide individual counseling and health education, weight control of students. It has been defined that for modern teachers it is a difficult task as students rarely eat fruits and vegetables, do not care about hygiene and frequency of meals, have passive mode of leisure. The acquisition of health during puberty allows functioning smoothly in society. However, despite the continuous work on improving and introduction of new programs of health education classes into schools of Poland, children still suffer from health-related problems. According to epidemiological research most of children in Poland fall on obesity, overweight and accompanying disorders and allergies. Youth is also exposed to accidents and related injuries. The problem is that students do not receive assistance and necessary information.


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