Reeze-Drying Impact on Hardness of Selected Soft Fruit Liophilisates

Domin, Marek; Ćwiklińska, Magdalena; Góral-Kowalczyk, Małgorzata

doi:10.2478/agriceng-2021-0011

Cited by 2 publications

(2 citation statements)

References 22 publications

(16 reference statements)

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“…Raspberry powders obtained after the dehydration of whole fruit or pomace can be added as functional additives (e.g., natural dyes) to food preparations. In most studies, powders were obtained from drying whole fruits [ 19 , 20 ]; only a few studies concern the drying of raspberry pomace [ 21 ]. Previous findings suggest that powders obtained by spray-drying raspberry extracts could be used as natural colorants or antioxidants [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

“…Drying studies of whole raspberries have shown that these techniques affect the physical properties, bioactive compounds, and antioxidant activity of the resulting powders differently [ 19 ]. Previous studies have shown that freeze-drying causes changes in the physical properties of raspberry pomace [ 21 ]. Only a few data describe the antioxidant properties of processed raspberry byproducts [ 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

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Micronized Powder of Raspberry Pomace as a Source of Bioactive Compounds

Różyło,

Amarowicz,

Janiak

et al. 2023

Molecules

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Red raspberries, which contain a variety of nutrients and phytochemicals that are beneficial for human health, can be utilized as a raw material in the creation of several supplements. This research suggests micronized powder of raspberry pomace production. The molecular characteristics (FTIR), sugar, and biological potential (phenolic compounds and antioxidant activity) of micronized raspberry powders were investigated. FTIR spectroscopy results revealed spectral changes in the ranges with maxima at ~1720, 1635, and 1326, as well as intensity changes in practically the entire spectral range analyzed. The discrepancies clearly indicate that the micronization of the raspberry byproduct samples cleaved the intramolecular hydrogen bonds in the polysaccharides present in the samples, thus increasing the respective content of simple saccharides. In comparison to the control powders, more glucose and fructose were recovered from the micronized samples of the raspberry powders. The study’s micronized powders were found to contain nine different types of phenolic compounds, including rutin, elagic acid derivatives, cyanidin-3-sophoroside, cyanidin-3-(2-glucosylrutinoside), cyanidin-3-rutinoside, pelargonidin-3-rutinoside, and elagic acid derivatives. Significantly higher concentrations of ellagic acid and ellagic acid derivatives and rutin were found in the micronized samples than in the control sample. The antioxidant potential assessed by ABTS and FRAP significantly increased following the micronization procedure.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Micronized Powder of Raspberry Pomace as a Source of Bioactive Compounds

Różyło,

Amarowicz,

Janiak

et al. 2023

Molecules

Self Cite

View full text Add to dashboard Cite

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Analysis of the Problem of Waste in Relation to Food Consumers

et al. 2022

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The global demand for food continues to increase. It is estimated that about 680 million people lack food access and suffer from malnutrition. On the other hand, in the current market, access to food is common and ever easier. Nevertheless, we are increasingly faced with the phenomenon of waste, which refers to the deliberate disposal of food that is fit for human consumption. This article focuses on a very important problem related to food waste, in relation to one of the main groups affected, i.e., consumers. Indeed, it is their awareness and behavior in the context of food waste and in relation to the environment, as well as future approaches to social sustainability, that are of the utmost importance. The study was conducted on a group of 384 respondents—the research sample was differentiated by sex and place of residence. The method used in the study was the analysis of correspondence, using data from the proprietary questionnaire, conducted on a group of adults, i.e., consumers, purchasing food. Respondents were asked about the issues related to the fact of wasting food, the frequency of this phenomenon and the main reasons why they do it. It should be emphasized that the respondents notice the problem by admitting that food is wasted in their households for various reasons. Conclusions resulting from the conducted statistical analysis and the analysis of the literature indicate that the main reason for wastage is that the use-by date has passed. Here arises the question as to why this fact comes about; maybe we buy too much food, which means that we are not able to ensure that the deadline for its consumption is not passed.

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Reeze-Drying Impact on Hardness of Selected Soft Fruit Liophilisates

Cited by 2 publications

References 22 publications

Micronized Powder of Raspberry Pomace as a Source of Bioactive Compounds

Micronized Powder of Raspberry Pomace as a Source of Bioactive Compounds

Analysis of the Problem of Waste in Relation to Food Consumers

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