Publications by authors named "Inga Smit"

Background: Low-temperature sweetening is a crucial aspect in the potato chips industry because of the initiation of browning. The present study aimed to investigate the effect of ultrasonication on the concentrations of reducing sugars, sucrose, asparagine and chip color on tubers with different characteristics. Therefore, samples of the cultivars (cvs.

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Breeding goals of potatoes for deep-frying purposes include high starch contents, good suitability for long-term storage, and low tendency to form reducing sugars as acrylamide precursors. Due to the extensive number of samples, an accurate analysis of acrylamide in French fries and its precursors in tubers is difficult to implement in the breeding process. Therefore, this study aimed to evaluate the suitability of NIRS measurements after minimal sample processing for the prediction of reducing sugar contents in the tubers or acrylamide contents in French fries.

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Low temperature storage as an alternative to anti-sprouting chemicals in potato storage may induce reducing sugars (RS) accumulation (i.e. glucose and fructose) in potato tubers.

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Article Synopsis
  • Table potatoes offer higher satiety than rice or pasta but have a conflicting glycemic index, which complicates dietary recommendations.
  • The study examined the resistant starch (RS) content and molecular properties of six potato varieties, focusing on starch digestibility and pasting characteristics.
  • Results indicated significant differences in RS formation among varieties, highlighting the importance of starch structural properties, while also emphasizing the need to consider non-starch components in breeding for lower glycemic index potatoes.
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This study was conducted to determine the volatile organic compounds (VOCs) associated with fruit flavor in diverse tomato cultivars (salad and cocktail cultivars) under organic low-input production. For this objective, 60 cultivars deriving from very diverse breeding programs 1880-2015 were evaluated in 2015, and a subset of 20 cultivars was selected for further evaluation in 2016. The diversity of instrumentally determined traits, especially for VOCs concentration and sensory properties (fruit firmness, juiciness, skin firmness, sweetness, sourness, aroma, and acceptability), was investigated at two harvest dates.

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The fate of β-glucan (BG) health promoting properties during food production is crucial, but not predictable yet. Therefore, high molar mass BG (hBG) and control BG (cBG) were extracted from two barley varieties, characterized and added to wheat breads at levels of 3% and 6%. Bread quality criteria, carbohydrate contents and BG content and structural properties were determined.

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Amaranth and finger millet are important food security crops in Africa but show poor bread making ability, even in composite wheat breads. Malting and steaming are promising approaches to improve composite bread quality, which have not been fully explored yet. Therefore, in this study, wheat was blended with native, steamed or malted finger millet or amaranth in the ratio of 70:30.

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The macronutrient potassium (K) has vital physiological functions in plants and its availability can strongly impact quality of crops like tomato. The impact of K nutrition on conventional tomato fruit quality parameters has been described several times, but detailed investigations on the effect of K supply on the fruit metabolite profile are still rare. To fill this gap, we investigated the influence of K fertilization on the metabolite profile of tomato fruits.

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Article Synopsis
  • The market for cocktail tomatoes is thriving due to their great taste, which is linked to factors like titratable acids (TA), total soluble solids (TSS), and dry matter (DM).
  • A study was conducted to examine how different potassium (K) fertilization methods affect the yield and quality traits of three small-sized tomato cultivars.
  • Results indicated that increasing K application improved quality traits in certain cultivars, particularly in Primavera, but only led to significant yield increase in that same cultivar, highlighting the need for tailored fertilizer approaches.
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  • Cocoa beans thrive in diverse environmental conditions across humid tropical regions, with agroforestry systems providing a more stable environment than monocultures.
  • Beans from agroforestry systems had higher concentrations of nutrients (like N, Mg, and Zn) and showed changes in chemical composition influenced by seasonal water availability, particularly during the dry season.
  • While agroforestry exhibits some benefits, it does not fully mitigate the variability of abiotic stress indicators throughout the seasons when compared to monoculture systems.
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Unlabelled: We analyzed the effect of Fusarium graminearum infection on field-grown naked barley (Hordeum vulgare nudum). The ears were inoculated with F. graminearum spores during anthesis.

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This study was conducted to improve the knowledge of molecular processes involved in the interaction between and emmer in the course of grain ripening. Emmer plants were artificially inoculated with a spore suspension at anthesis. In the course of grain ripening from milk ripe to plant death stage, grains at four phenological growth stages were collected for analysis.

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  • Wines with higher biogenic amines can negatively impact health, and nitrogen fertilization in vineyards affects their levels.
  • A study found that applying nitrogen increased total amine concentrations in musts and wines, particularly ethylamine and histamine, while some other amine levels decreased during fermentation.
  • Despite the increase, tyramine and histamine levels remained safe for non-allergenic individuals across both years of the study.
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Pollination improves the yield of most crop species and contributes to one-third of global crop production, but comprehensive benefits including crop quality are still unknown. Hence, pollination is underestimated by international policies, which is particularly alarming in times of agricultural intensification and diminishing pollination services. In this study, exclusion experiments with strawberries showed bee pollination to improve fruit quality, quantity and market value compared with wind and self-pollination.

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Background: Tomato fruits are characterized by a good nutritional profile, including different bioactive compounds such as carotenoids, phenolic compounds and ascorbic acid. The objective of this study was to analyze the content of bioactive compounds in the fruit and the infection by Phytophthora infestans of 28 tomato genotypes from organic outdoor production. The relationship between bioactive compounds in the fruit and infection with P.

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