Stefanie Kremer

Salt Reduction in Foods Using Naturally Brewed Soy Sauce

UNLABELLED In recent years, health concerns related to salt/sodium chloride consumption have caused an increased demand for salt-reduced foods. Consequently, sodium chloride (NaCl) reduction in foods has become an important challenge. The more so, since a decrease in NaCl content is often reported to be associated with a decrease in consumer acceptance. The objective of the present study was to investigate whether or not it would be possible to reduce the NaCl content in standard Western European foods by replacing it with naturally brewed soy sauce. Three types of foods were investigated: salad dressing (n = 56), soup (n = 52), and stir-fried pork (n = 57). In the 1st step, an exchange rate (ER) by which NaCl can be replaced with soy sauce without a significant change in the overall taste intensity was established per product type, by means of alternative forced choice tests. In the 2nd step, the same consumers evaluated 5 samples per product type with varying NaCl and/or soy sauce content on pleasantness and several sensory attributes. The results showed that it was possible to achieve a NaCl reduction in the tested foods of, respectively, 50%, 17%, and 29% without leading to significant losses in either overall taste intensity or product pleasantness. These results suggest that it is possible to replace NaCl in foods with naturally brewed soy sauce without lowering the overall taste intensity and to reduce the total NaCl content in these foods without decreasing their consumer acceptance. PRACTICAL APPLICATION Health concerns related to salt consumption cause an increased demand for salt-reduced foods. Consequently, the development of foods with reduced salt content without decreasing the consumer acceptance is an important challenge for the food industry. A new possible salt reduction approach is described in the present article: The replacement of salt with naturally brewed soy sauce.

A Salt Reduction of 50% in Bread Does Not Decrease Bread Consumption or Increase Sodium Intake by the Choice of Sandwich Fillings

Bread is a major contributor to sodium intake in many countries. Reducing the salt (NaCl) content in bread might be an effective way to reduce overall sodium intake. The objectives of this study were to examine the effects of gradually lowering the salt content in brown bread, with and without flavor compensation (KCl and yeast extract), on bread consumption and sodium intake compensation by choice of sandwich fillings. A total of 116 participants (age: 21 ± 3 y; BMI: 22 ± 2 kg/m²) consumed a buffet-style breakfast on weekdays for 4 wk. Participants received either regular bread (control group: n = 39), bread whose salt content was gradually lowered each week by 0, 31, 52, and 67% (reduced group: n = 38), or bread whose salt content was also gradually lowered each week but which was also flavor compensated (compensated group: n = 39). A reduction of up to 52% of salt in bread did not lead to lower consumption of bread compared to the control (P = 0.57), whereas less bread was consumed when salt was reduced by 67% (P = 0.006). When bread was flavor compensated, however, a reduction of 67% did not lead to lower consumption (P = 0.69). Salt reduction in bread (with and without flavor compensation) did not induce sodium intake compensation (P = 0.31). In conclusion, a salt reduction of up to 52% in bread or even up to 67% in flavor-compensated bread neither affected bread consumption nor choice of sandwich fillings.

Compensation for age-associated chemosensory losses and its effect on the pleasantness of a custard dessert and a tomato drink

Differences between elderly subjects (n=52, 60-85 years) and young subjects (n=55, 18-35) in their food liking and their olfactory capability were investigated. Two food systems were used: custard desserts and tomato drinks. Flavor enhancement/enrichment, textural change, and/or irritant addition were incorporated as compensatory strategies into these foods. The addition of low concentrations of both cherry flavor and cream flavor to the custard desserts influenced their pleasantness for the majority of the elderly. The addition of cream topping increased the pleasantness of the custard desserts for both the elderly and the young. The elderly equally liked the tomato drinks with no or with low irritant addition, whereas the young generally disliked an irritant addition. However, the food liking of the elderly was not generally increased by these different compensatory strategies. Instead, subgroups were observed for each compensatory strategy, in which applied compensatory strategies led to an increase in product pleasantness. Age-associated losses in olfactory capabilities did not sufficiently explain differences in food liking, as only elderly with similar olfactory capabilities to the young demonstrated a liking of enhanced flavor. The present study does not support the assumption that age-associated impairment in olfactory capability will inevitably lead to changes in food liking.

It is not just a meal, it is an emotional experience - a segmentation of older persons based on the emotions that they associate with mealtimes.

Worldwide, the group of older persons is growing fast. To aid this important group in their food and meal requirements, a deeper insight into the expectations and experiences of these persons regarding their mealtimes and snack times is needed. In the current study, we aim to identify consumer segments within the group of vital community-dwelling older persons on the basis of the emotions they associate with their mealtimes and snack times (from now on referred to as mealtimes). Participants (n = 392, mean age 65.8 (years) ± 5.9 (SD)) completed an online survey. The survey consisted of three questionnaires: emotions associated with mealtimes, functionality of mealtimes, and psychographic characteristics (health and taste attitudes, food fussiness, and food neophobia). Consumer segments were identified and characterised based on the emotions that the respondents reported to experience at mealtimes, using a hierarchical cluster analysis. Clusters were described using variables previously not included in the cluster analysis, such as functionality of mealtimes and psychographic characteristics. Four consumer segments were identified: Pleasurable averages, Adventurous arousals, Convivial indulgers, and Indifferent restrictives. These segments differed significantly in their emotional associations with mealtimes both in valence and level of arousal. The present study provides actionable insights for the development of products and communication strategies tailored to the needs of vital community-dwelling older persons.

Dutch nutrition and care professionals’ experiences with undernutrition awareness, monitoring, and treatment among community-dwelling older adults: a qualitative study

BackgroundUndernutrition can negatively affect community-dwelling older adults’ health and quality of life. Undernutrition management guidelines have been developed in the Netherlands for the primary care setting, however, the application of these guidelines remain unsatisfactory. The current study therefore aims to explore qualitatively the experiences of Dutch nutrition and care professionals and researchers with undernutrition awareness, monitoring, and treatment among community-dwelling older adults.MethodsWe telephonically interviewed 22 Dutch nutrition and care professionals and researchers. Our semi-structured interview guide elicited answers that we audiotaped and transcribed verbatim. The interviews were coded using grounded theory and content analysis with the qualitative analysis software MAXQDA, after which the codes were categorized into themes.ResultsThe interviews resulted in six themes relevant to the topics of interest: undernutrition awareness, monitoring, and treatment. These were: (1) adverse changes in nutrition behaviour; (2) limited undernutrition awareness; (3) unclear monitoring responsibilities and procedures; (4) lack of awareness, time, and priority as monitoring barriers; (5) lack of treatment personalization and justification; (6) lack of timely treatment implementation and evaluation.ConclusionsThe experts’ experiences imply that undernutrition awareness is limited, among both older adults and care professionals. In addition, the interviewees are unclear about which professionals are responsible for monitoring and which monitoring procedures are preferred. The dietitians feel that they become involved too late, leading to decreased treatment effectiveness. In general, the interviewees desire a coherent and feasible allocation of responsibilities regarding undernutrition monitoring and treatment. This implies that the available guidelines on undernutrition management require more attention and facilitation.

Fresh, frozen, or ambient food equivalents and their impact on food waste generation in Dutch households

In Europe, it is estimated that more than 50% of total food waste - of which most is avoidable - is generated at household level. Little attention has been paid to the impact on food waste generation of consuming food products that differ in their method of food preservation. This exploratory study surveyed product-specific possible impacts of different methods of food preservation on food waste generation in Dutch households. To this end, a food waste index was calculated to enable relative comparisons of the amounts of food waste from the same type of foods with different preservation methods on an annual basis. The results show that, for the majority of frozen food equivalents, smaller amounts were wasted compared to their fresh or ambient equivalents. The waste index (WI) proposed in the current paper confirms the hypothesis that it may be possible to reduce the amount of food waste at household level by encouraging Dutch consumers to use (certain) foods more frequently in a frozen form (instead of fresh or ambient). However, before this approach can be scaled to population level, a more detailed understanding of the underlying behavioural causes with regard to food provisioning and handling and possible interactions is required.

SenTo. A multidisciplinary Dutch initiative on healthy 55+ers food needs and wants

The present research made use of SenTo (Senioren van de Toekomst (Dutch); Seniors of the Future), a research initiative that aims at gaining insight in drivers and barriers of elderly food enjoyment (700 members in 2011). The SenTo members have previously been screened for their olfactory and gustatory acuity. The objective of the present study was to investigate elderly food preferences with regard to a newly developed protein & vitamin enriched bread. To this end, a conjoint analysis approach was taken. Thirty-eight young subjects (20–45 years), 40 SenTo 55+ers with normal olfactory acuity and 43 SenTo 55+ers with impaired olfactory acuity participated. Three factors (bread type, protein information, vitamin information) were varied in a full factorial design. Liking was scored directly after tasting. The contributions of the three manipulated factors to product liking did not significantly differ between the three subject groups. The most influential factor was the type of bread, with lesser and almost equal contributions from the two different types of product information. Looking at the individual part worth estimates, it was observed that SenTo 55+ers with olfactory impairment preferred the newly developed protein & vitamin enriched bread over the standard bread. The protein information that was given appealed especially to the women in this subgroup. Consequently, the findings of the present study are in support of the notion that customization of protein enrichment is required for different elderly segments.

Studying Emotions in the Elderly

Abstract This chapter provides an overview of our current understanding of emotions and their measurement in older people. The first part briefly reviews our current understanding of both “the elderly” in general and various facets of emotional aging, such as emotional experiences, emotion regulation, emotion perception, emotion-related attention, and memory. The multidirectionality of the late-life development in the different emotion-related functional domains is stressed. The second part describes published results on the application of various emotion measurement tools in older populations. For all these methods, their general suitability for emotion measurement in elderly populations is discussed and, where applicable, directions for future research are pointed out.