Low-salt Bread Research Articles

The strategy of odor−taste−texture interactions to produce low salt bread: Oral processing and sensory properties

AbstractBackground and ObjectivesSince bread consumption has a significant role in enhancing salt intake in the human diet, this study aimed to decrease the salt level in bread while maintaining its desirable properties. The strategy of odor−taste−texture interactions was used to reduce the 50% NaCl level of the bread, in which gel emulsifier was a texture agent, cheese odor was an odor agent, and monosodium glutamate (MSG) and NaCl were taste substances. Bread characterizations (i.e., texture, structure, and mastication), properties of the bolus (i.e., texture and particle size distribution), and the sensory properties of low salt bread were investigated.FindingsBread samples with lower porosity had a denser structure, resulting in higher hardness. The low salt bread samples, formulated with a gel emulsifier (1% of flour weight), showed lower hardness and higher porosity (%). The bread samples with higher springiness needed a longer chewing time. The bread samples with larger air cell sizes resulted in bolus with smaller particle sizes. According to sensory analysis the interactions of gel emulsifier with taste in the bread matrix increased porosity and softness perception.ConclusionsOdor−taste−texture interactions were an appropriate strategy to improve some of the sensory properties of low‐salt bread samples, such as increasing porosity, bread flavor, and softness.Significance and NoveltyThe present study investigated the impact of cheese odor‐NaCl‐MSG interactions combined with a gel emulsifier on the flavor and texture characterization of low salt bread.

The impact of low-salt bread as a simple diet on hypertensive patients with cardiovascular comorbidities.

During recent years, hypertension and related cardiovascular complications have become the leading health challenges of this century. Non-pharmacologic strategies, emphasizing mainly salt restriction and physical activity, are recommended for all patients with hypertension. Our objective was to assess the impact of low salt white bread intake, widely consumed in Western Algeria, on blood pressure values in hypertensive patients with and without comorbidities. 134 hypertensive patients (male = 78, female = 56) were included. The study population was divided into two groups according to their choice of following a low salt white bread diet or not. Their dietary salt intake and physical activity were surveyed along with their blood pressure measurements and associated comorbidities. Other clinical and anthropometric data were collected. Patients following low salt bread diet showed decreased systolic and diastolic blood pressure values (119.07/74.63 mmHg) compared to the second group (131.92/79.81) (p < 0.01). These results were observed specifically in patients with adjacent cardiovascular diseases who seem to be less compliant to the diet (41.1% of the whole population, p < 0.05) and show significant increased blood pressure (135.75/81.53 mmHg) compared to compliant patients (116.66/75.33 mmHg) (p < 0.01). The study highlights the impact of low salt bread diet on the treatment of hypertension with and without comorbidities.

Increasing saltiness perception and keeping quality properties of low salt bread using inhomogeneous salt distribution achieved with salt agglomerated by waxy starch

This study aimed to evaluate the effect of using salt agglomerates produced by waxy starch, inhomogenously distributed, on the quality parameters and saltiness perception of bread with reduced sodium content. Three treatments were carried out: control, salt content reduced by 30%, and salt content reduced by 30% with salt randomly added as agglomerates. The technological characteristics of the dough (alveograph and farinograph) and the characteristics of the bread: specific volume, texture profile, colour (L*, a*, b*), and saltiness perception were evaluated. The utilization of the salt agglomerates kept almost all the quality parameters of the dough. There was only a slight increase in dough development time and a decrease in dough stability, which have been already found in previous studies with a salt reduction in bread. Furthermore, in the salt agglomerates essay, the perception of saltiness increased, resulting in bread with 30% salt reduction but similar to the control. It can be concluded that the use of salt agglomerates made with waxy starch and added in inhomogeneous distribution can improve the saltiness perception of bread without affecting the quality parameters.

Improvement of taste and shelf life of yeasted low-salt bread containing functional sourdoughs using Lactobacillus amylovorus DSM 19280 and Weisella cibaria MG1

The challenge remains for the baking industry to reduce salt levels in yeasted bread as directed by governments, retailers and consumers around the world. The two main problems associated with the reduction of salt are a lack of salty taste and the reduction in shelf-life. Both of these issues are addressed in the presented work. A range of breads containing different levels of salt (0.0%, 0.3% and 1.2% of NaCl) in combination with various levels of sourdough (0%, 6%, 12%, 18%, 24%) was produced. The different doughs were analysed for their rheological behaviour. The bread quality characteristics such as loaf volume, crumb structure, staling rate and microbial shelf life were also determined. The sourdoughs were analysed for their different metabolites: organic acids, sugars, exopolysaccharides (EPS), and antifungal compounds. A trained sensory panel was used to perform descriptive analysis of the bread samples. The object of this paper is to use functional sourdoughs, containing Lactobacillus amylovorus DSM 19280 and Weisella cibaria MG1 to compensate for the quality problems that occur when salt is reduced in yeasted bread. The application of functional sourdoughs containing exopolysaccharides and/or antifungal substances in salt reduced breads significantly improved the quality. The application of functional sourdoughs allows the reduction of salt to a level of 0.3%.

The perception of low-salt bread among preschool children and the role of educational personnel in creating a positive attitude towards reformulated food.

IntroductionThe purpose of this study was to identify the possibility of unnoticed reduction in salt content of bread as a basic food in the diet of preschool children. The response of children to less salty bread and the role of teachers and teacher assistants in the introduction of novelties into children’s nutrition ware studied.MethodsUsing hedonic sensory evaluation in the case of bread, the perception of salty taste and responses of preschool children to salt reduction were observed. The combination of quantitative and qualitative data analysis obtained from the case study group, composed of 22 preschool children and 66 teachers and teacher assistants, was studied.ResultsThe results show that a 30% salt reduction was not registered by the children, while a 50% reduction of the salt content, compared to the original recipe, though noted, was not disruptive. The perception of taste and development of good eating habits at an early age could be influenced by teachers and teacher assistants’ verbal and non-verbal communication.ConclusionSalt reduction does not significantly affect the rating of satisfaction with the tested product. Educational personnel must be aware of their decisive influence on children’s perception of new and less salty products. Such an approach could represent a basis for creating children’s eating habits, which will be of particular importance later in their lives. The findings may possibly result in an update of the national nutrition policy.

Reducing salt in bread: a quasi-experimental feasibility study in a bakery in Lima, Peru.

To explore salt content in bread and to evaluate the feasibility of reducing salt contained in 'pan francés' bread. The study had two phases. Phase 1, an exploratory phase, involved the estimation of salt contained in bread as well as a triangle taste test to establish the amount of salt to be reduced in 'pan francés' bread without detection by consumers. In Phase 2, a quasi-experimental, pre-post intervention study assessed the effects of the introduction of low-salt bread on bakery sales. A municipal bakery in Miraflores, Lima, Peru. Sixty-five clients of the bakery in Phase 1 of the study; sales to usual costumers in Phase 2. On average, there was 1·25 g of salt per 100 g of bread. Sixty-five consumers were enrolled in the triangle taste test: fifty-four (83·1 %) females, mean age 58·9 (sd 13·7) years. Based on taste, bread samples prepared with salt reductions of 10 % (P=0·82) and 20 % (P=0·37) were not discernible from regular bread. The introduction of bread with 20 % of salt reduction, which contained 1 g of salt per 100 g of bread, did not change sales of 'pan francés' (P=0·70) or other types of bread (P=0·36). Results were consistent when using different statistical techniques. The introduction of bread with a 20 % reduction in salt is feasible without affecting taste or bakery sales. Results suggest that these interventions are easily implementable, with the potential to contribute to larger sodium reduction strategies impacting the population's cardiovascular health.

Fluffy Route To Low-Salt Bread

Bread baked to a fluffier texture tastes saltier than more dense counterparts of the dietary staple, a new study shows (J. Agric. Food Chem., DOI: 10.1021/jf403304y). This discovery might prove useful for lowering the salt content in bread—the highest single source of sodium in the U.S. diet. Health experts have long advocated a reduced-sodium diet as one way to prevent cardiovascular disease. And food chemists are rising to the challenge of creating more low-salt foods. But reducing salt in bread is not easy. Sodium chloride affects the activity of yeast, and it extends shelf life in addition to other benefits. Plus people like the taste better. Salt substitutes haven’t worked that well. The research indicates that the flavor issue in low-salt bread can be addressed via texture. Peter Koehler of the German Research Center for Food Chemistry decided to examine how texture affects the perception of saltiness in yeast breads. ...

Healthy Bread Initiative: Methods, Findings, and Theories—Isfahan Healthy Heart Program

The scientific evidences show that the content, baking methods, and types of bread can make health impacts. Bread, as a major part of Iranian diet, demonstrates a significant potential to be targeted as health promotion subject. Healthy Food for Healthy Communities (HFHC) was a project of Isfahan Healthy Heart Program (IHHP), consisting of a wide variety of strategies, like Healthy Bread (HB) Initiative. The HB Initiative was designed to improve the behaviour of both producers and consumers, mainly aiming at making high-fibre, low-salt bread, eliminating the use of baking soda, providing enough rest time for dough before baking (at least one hour), and enough baking time (at least one minute in oven). A workshop was held for volunteer bakers, and a baker-to-baker training protocol under direct supervision was designed for future volunteers. Cereal Organization was persuaded to provide less refined flour that contained more bran. Health messages in support of new breads were disseminated by media and at bakeries by health professionals. Evaluation of the HB Initiative was done using before-after assessments and population surveys. While HB was baked in 1 (0.01%) bakery at baseline, 402 (41%) bakeries in the intervention area joined the HB Initiative in 2009. Soda was completely eliminated and fibre significantly increased from 4 +/- 0.4 g% before study to 12 +/- 0.6 g% after the intervention (p < 0.001). The preparation and baking times remarkably increased. Wastage of bread decreased from 13 +/- 1.8 g% to 2 +/- 0.5 g% and was expressed as the most important advantage of this initiative by consumers. People who lived in Isfahan city consumed whole bread 6 times more than those who lived in reference area Arak (p < 0.001). The HB Initiative managed to add new breads as a healthy choice that were compatible with local dishes and made a model to solve the longstanding problems of bread. It used various health promotion approaches but was best consistent with Beattie's model.

The effect of sourdough and calcium propionate on the microbial shelf-life of salt reduced bread

The consumption of low-salt bread represents an efficient way to improve public health by decreasing cardiovascular health issues related to increased intakes of sodium chloride (NaCl). The reduction of NaCl influences the bread quality characteristics, in particular the shelf-life. Calcium propionate (CP) is commonly used in bread as an antifungal agent. Alternatively, sourdough can be used as a natural preservative. This work addresses the feasibility of NaCl reduction in wheat bread focussing on shelf-life and the compensation using sourdough as well as chemical preservatives. The impact of NaCl reduction and the addition of preservative agents in conjunction with different NaCl concentrations on the shelf-life of bread were tested under 'environmental' conditions in a bakery as well as using challenge tests against selected fungi. The challenge tests were performed using fungi commonly found in the bakery environment such as Penicillium expansum, Fusarium culmorum and Aspergillus niger. NaCl reduction decreased the shelf-life by 1-2days. The addition of sourdough with antifungal activity prolonged the shelf-life to 12-14days whereas the addition of 0.3% calcium propionate prolonged the shelf-life to 10-12days only. The fungal challenge tests revealed differences in the determined shelf-life between the different fungi based on their resistance. Similar antifungal performance was observed in sourdough breads and calcium propionate breads when tested against the different indicator moulds. The findings of this study indicate that addition of sourdough fermented using a specifically selected antifungal Lactobacillus amylovorus DSM 19280 can replace the chemical preservative calcium propionate addition and compensate for the reduced level and, therefore, guarantee the product safety of low-salt bread.

Feasibility of salt reduction in processed foods in Argentina

To assess an intervention to reduce salt intake based on an agreement with the food industry. Salt content was measured in bakery products through a national survey and biochemical analyses. Low-salt bread was evaluated by a panel of taste testers to determine whether a reduced salt bread could remain undetected. French bread accounts for 25% of the total salt intake in Argentina; hence, reducing its salt concentration from 2% to 1.4% was proposed and tested. A crossover trial was conducted to evaluate the reduction in urinary sodium and blood pressure in participants during consumption of the low-salt bread compared with ordinary bread. Average salt content in bread was 2%. This study evaluated low-salt bread containing 1.4% salt. This reduction remained mostly undetected by the panels of taste testers. In the crossover trial, which included 58 participants, a reduction of 25 milliequivalents in 24 hour urine sodium excretion, a reduction in systolic blood pressure of 1.66 mmHg, and a reduction in diastolic blood pressure of 0.76 mmHg were found during the low-salt bread intake. The study showed that dietary salt reduction was feasible and well accepted in the population studied through a reduction of salt content in bread. Although the effects on urinary sodium and blood pressure were moderate, a country wide intervention could have a greater public health impact.

Should man live by low-salt bread alone?

Should man live by low-salt bread alone?

Should man live by low-salt bread alone?

Should man live by low-salt bread alone?

Effects of a salt-restricted diet on the intake of other nutrients

Salt restriction, recommended as the first-line treatment of hypertension, has been proposed to lead to deficiencies in intakes of some other nutrients. The aim of this study was to investigate the effects of salt restriction for 20 wk on the intake of other nutrients in free-living subjects with mildly elevated blood pressure. Thirty-nine subjects (24 men, 15 women) aged 28-65 y with a mean daytime ambulatory diastolic blood pressure of 90-105 mm Hg and a diastolic blood pressure measured in a health care center of 95-115 mm Hg participated in the study. The subjects completed 4-d food records and their salt intake was measured by 24-h urinary sodium excretion. The subjects received both oral and written instructions from a clinical nutritionist on how to reduce their daily sodium chloride intake to <5 g/d but were instructed not to change their diet otherwise. The subjects were provided with low-salt bread during the salt-restriction period. Few changes were found in nutrient intakes. In men, total energy intake decreased by 1059 kJ/d and alcohol, potassium, and vitamin D intakes decreased, but there were no significant changes in energy-adjusted potassium and vitamin D intakes. In women, total potassium intake increased, but the potassium density of the diet remained unchanged. Total selenium intake and energy-adjusted intake of selenium both decreased significantly in women. Salt restriction can be undertaken in free-living hypertensive subjects without any untoward changes in the intake of other nutrients.

Attitudes, norms, intentions and hedonic responses in the selection of low salt bread in a longitudinal choice experiment

A total of 61 subjects selected a type of bread twice a week, 15 times in all, to be used in their families at home. Four bread types were available: white, wheat, rye and sour rye, each with two sodium chloride levels (normal salt = NS, low salt = LS, half of the normal level). The subjects' attitudes, norms and buying intentions concerning the LS bread were measured at the beginning and at the end of the experimental period. The data were used to test the feasibility of the Fishbein model for the prediction of buying intention and actual selection. In addition, hedonic responses to the breads were measured. The LS bread was selected in 32-39% of cases in all, depending on the bread type. However, there were large individual differences. The proportion of LS breads chosen decreased during the experimental period for all the four bread types. In accordance with this, buying intentions, attitudes and hedonic responses were less favorable to the LS breads by the end of the experiment. Low salt content was best accepted in sour rye breads. The Fishbein model predicted 38% of the buying intentions and 21% of the actual selections (end measurements). When the hedonic response was inserted into the model, the values were improved to 52 and 32%, respectively. It is concluded that the Fishbein model is a useful frame of reference for human food selection studies, and that its predictive power in this particular field of behavior appears to improve substantially when the hedonic response is included in the model.

Effect of saltiness on the liking and consumption of bread and butter

In two experiments bread and butter were salted at different levels, and the effect of this salting on the overall liking and consumption of these foods was studied. In the first experiment the interaction of the saltiness of wheat bread (0.8 %, 1.4 % and 2.0 % NaC1) and butter (0 %, 1.5 % and 2.2 % NaC1) was studied in a sensory test involving 89 subjects. The results indicated a mutual compensation effect between the salty tastes of bread and butter at the lowest salt concentration in the bread. In the second experiment the consumption of wheat bread, sour rye bread and crispbread, and of butter were recorded at a lunch restaurant during a 12 week period. Normally salted bread (1.5–2.0 % NcCl) was available during the initial and final parts of the experiment (3 weeks both), whereas in the middle (6 weeks) only low salt bread (1.0–1.2% NaCl) was served. Consumption of wheat bread increased significantly (p < 0.05) when normal salt bread was served after the low salt period. No other differences between ...