scholarly journals Traditional and Unconventional Dried Fruit Snacks as a Source of Health-Promoting Compounds

Antioxidants ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 396 ◽  
Author(s):  
Dario Donno ◽  
Maria Gabriella Mellano ◽  
Isidoro Riondato ◽  
Marta De Biaggi ◽  
Harilala Andriamaniraka ◽  
...  

Dried fruits are important, healthy and popular snacks, despite the limited information on their nutritional profiles and phytochemical composition. The present work was aimed to study the chemical composition of freeze-dried fruits from four fruit species: two common commercial snacks (apple and goji) and two innovative products (kaki and kiwi). Sugar and organic acid levels, total phenolics (TPC), and main health-promoting phytochemicals were studied by HPLC fingerprinting analysis. Furthermore, in vitro antioxidant capacity (AOC) was preliminarily observed in these products. A Principal Component Analysis (PCA) was carried out as a multivariate approach as well. The TPC ranged from 210.9 mg GAE/100g DW (kiwi) to 872.6 mg GAE/100g DW (kaki), while dried fruit antioxidant capacity ranged from 23.09 mmol Fe2+/kg DW (goji) to 137.5 mmol Fe2+/kg DW (kaki). The most important phytochemical class in apple (two cultivars), kiwi, and kaki dried fruits was phenolics (from 74.6% to 93.3%), while monoterpenes were the first class in goji (67.5%). No anthocyanins have been identified in dried fruits because these compounds are most likely converted to phenolic acids during the drying process. This research intended to stimulate large-scale exploitation of commercial dried fruits as functional foods as well.

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7189
Author(s):  
Yue Li ◽  
Pei Li ◽  
Kailin Yang ◽  
Qian He ◽  
Yue Wang ◽  
...  

Sea buckthorn berries are rich in bioactive compounds and can be used for medicine and food. The variety and drying method used have an important influence on quality. In this study, different sea buckthorn varieties from China were selected and dried with four common drying methods. The total phenolic content (TPC), total flavonoids content (TFC), contents of 12 phenolic compounds and antioxidant capacity in vitro were analyzed. The results showed that the TPC, TFC and antioxidant activity of two wild sea buckthorn berries were higher than those of three cultivated berries, and for the same varieties, measured chemical contents and antioxidant activity of the freeze-dried fruit were significantly higher than those obtained with three conventional drying methods. In addition, forty-one compounds in sea buckthorn berry were identified by UPLC-PDA-Q/TOF-MS, most of which were isorhamnetin derivatives. Multivariate statistical analysis revealed narcissin and isorhamnetin-3-O-glucoside varied significantly in sea buckthorn berries of different varieties and with different drying methods; they were potential quality markers. Strong correlations were found between TPC, gallic acid and antioxidant capacity (p < 0.05). The results revealed how components and antioxidant activity varied in different sea buckthorn, which provides a valuable reference for quality control and further development and utilization of sea buckthorn.


2014 ◽  
Vol 32 (No. 4) ◽  
pp. 360-398 ◽  
Author(s):  
N. Miletić ◽  
B. Popović ◽  
O. Mitrović ◽  
M. Kandić ◽  
A. Leposavić

Dried fruits (plums, apricots, figs, grapes (amber light and amber dark), chokeberries, and bilberries), and candied fruits (cranberries, cherries, and dates), commercially available and commonly consumed in Serbia, were purchased on the same day in local groceries, and analysed for total phenolics and antioxidant capacity. Total phenolics contents of dried and candied fruits were as follows: dried chokeberries &gt; dried bilberries &gt; dried plums &gt; candied cherries, dried apricot &gt; dried grapes (amber light) &gt; candied cranberries, dried figs, dried grapes (amber dark), candied dates. The order of antioxidant capacity showed a very similar trend as the total phenolics content. Significant correlation between total phenolics content and antioxidant capacity (R = 0.9931, P &lt; 0.001) was observed. Using HPLC, the identification of selected phenolic compounds was carried out. Most of these compounds were the most abundant in dried chokeberries and dried bilberries, and consequently the highest antioxidant capacity was found in these dried fruit species.


2020 ◽  
Vol 10 (11) ◽  
pp. 3668 ◽  
Author(s):  
Justyna Bochnak-Niedźwiecka ◽  
Michał Świeca

This study evaluates nutrients and health-promoting compounds responsible for antioxidant capacity in eight novel formulations based on lyophilized fruit and vegetable powders. The composition contained lyophilized carrot, pumpkin, lentil sprouts, raspberry, strawberry, and apple. The effect of functional additives on the antioxidant, nutritional, and functional characteristics of powdered beverages was determined in the powders and after rehydration followed by in vitro digestion. The antioxidant activity, phenols, vitamin C, and reducing power were significantly higher in the powders enriched with additives having potential functional properties. Furthermore, the analyses indicated that all the powdered formulations may be potential sources of total starch (100–112 mg/100 mL) and proteins (125–139 mg/100 mL). The designed powdered beverages after reconstitution exhibited high antioxidant content, reasonable consumer acceptance, and good in vitro bioaccessibility. The best results of antioxidant capacity were obtained for beverages enriched with raspberry, i.e., 10.4 mg Trolox equivalent (TE)/100 mL and 12.1 mg TE/100 mL rehydrated at 20 °C and 80 °C, respectively. Additionally, color characteristics were used as indicators of the quality of the powdered beverages. This research promotes the reduction of food waste, since whole plant tissues are used, thus allowing maximum exploitation of food raw materials; moreover, drying provides stable shelf life.


2016 ◽  
Vol 37 (4) ◽  
pp. 1779 ◽  
Author(s):  
Herick Fernando de Jesus Silva ◽  
Simone Abreu Asmar ◽  
Rayssa Camargo de Oliveira ◽  
Berildo De Melo ◽  
José Magno Queiroz Luz ◽  
...  

The barueiro (Dipteryx alata Vog.) is a native fruit species of the Cerrado ecoregion that has multiple uses. It is a wild species, and its cultivation is difficult. Furthermore, it is threatened with extinction. Plant tissue culture is a major tool for the conservation of germplasm, as well as a means of propagating high-quality seedlings on a large scale. However, this technique has not been used with barueiro, although it might provide valuable contributions to the process of barueiro domestication. The most popular method of cultivation is the use of the Murashige and Skoog medium (MS), which is considered one of the most nutritionally complete media. Woody plant medium (WPM) is indicated for the propagation of woody species, but there are no reports of its use for barueiro cultivation. Woody plants tend to have problems with rust in vitro during the establishment phase. Activated charcoal acts as an adjuvant for the adsorption of phenolic compounds, mitigating its effects in the medium. Thus, the objective of this study was to test four activated charcoal doses (0, 2, 4 and 6 g L-1) and three culture media: MS, WPM, and AA (over water agar) in the in vitro establishment of barueiro. The experimental design was a completely randomised (DIC), 4 × 3 factorial design with three replications. At 60 days after inoculation, the explants were evaluated for dry matter, fresh weight, stem diameter, shoot length, number of leaves, longest root length, germination rate, and chlorophyll contents. The MS medium supplemented with 3,0 g L-1 activated charcoal appeared to be the best for in vitro establishment of barueiro.


2016 ◽  
Vol 116 (4) ◽  
pp. 700-709 ◽  
Author(s):  
Julia Baudry ◽  
Mathilde Touvier ◽  
Benjamin Allès ◽  
Sandrine Péneau ◽  
Caroline Méjean ◽  
...  

AbstractLimited information is available on large-scale populations regarding the socio-demographic and nutrient profiles and eating behaviour of consumers, taking into account both organic and conventional foods. The aims of this study were to draw up a typology of consumers according to their eating habits, based both on their dietary patterns and the mode of food production, and to outline their socio-demographic, behavioural and nutritional characteristics. Data were collected from 28 245 participants of the NutriNet-Santé study. Dietary information was obtained using a 264-item, semi-quantitative, organic FFQ. To identify clusters of consumers, principal component analysis was applied on sixteen conventional and sixteen organic food groups followed by a clustering procedure. The following five clusters of consumers were identified: (1) a cluster characterised by low energy intake, low consumption of organic food and high prevalence of inadequate nutrient intakes; (2) a cluster of big eaters of conventional foods with high intakes of SFA and cholesterol; (3) a cluster with high consumption of organic food and relatively adequate nutritional diet quality; (4) a group with a high percentage of organic food consumers, 14 % of which were either vegetarians or vegans, who exhibited a high nutritional diet quality and a low prevalence of inadequate intakes of most vitamins except B12; and (5) a group of moderate organic food consumers with a particularly high intake of proteins and alcohol and a poor nutritional diet quality. These findings may have implications for future aetiological studies investigating the potential impact of organic food consumption.


2018 ◽  
Vol 32 (2) ◽  
pp. 175-182 ◽  
Author(s):  
Hanna Kowalska ◽  
Agata Marzec ◽  
Jolanta Kowalska ◽  
Agnieszka Ciurzyńska ◽  
Kinga Samborska ◽  
...  

Abstract The aim of the study was to determine the impact of osmotic pre-dehydration and drying of fruit on the rehydration properties of dried fruit. Herein, the effect of fruit juice, applied as a natural enriching substance was very important. In addition, the properties of dried fruits obtained through combined air-drying and subsequent microwave-vacuum drying with ‘puffing’ effect were similar to the freeze-dried fruits, but showed other rehydration properties. As raw material, frozen strawberry (Honeoye variety) and fresh apples (Idared variety) were used in the study. The apples and partially defrosted strawberries were prior dehydrated in solutions of sucrose and a mixture of sucrose with chokeberry juice concentrate at 50°C for 2 h. Next, the fruit samples were dried by one of two ways: air-drying (50°C, 5 h) and microwavevacuum drying for about 360 s; and freeze-drying (30°C, 63 Pa, 24 h). The rehydration was carried out in distilled water (20°C, 5 h). The osmotic pre-dehydration hindered fruit drying process. The impact of drying method became particularly evident while examining the kinetics of rehydration. During the rehydration of the pre-dehydrated dried fruit a slower hydration could be observed. Freeze-dried strawberries absorbed 2-3 times more water than those dried by the ‘puffing’ effect.


Molecules ◽  
2020 ◽  
Vol 25 (20) ◽  
pp. 4648
Author(s):  
Aneta Wojdyło ◽  
Paulina Nowicka ◽  
Karolina Tkacz ◽  
Igor Piotr Turkiewicz

The aim of the study was to analyze potential health-promoting and nutritional components (polyphenols, L-ascorbic acid, carotenoids, chlorophylls, amino acids, organic acid, sugars, ash and pectins) of selected sprouts (radish, lentil, black medick, broccoli, sunflower, leek, beetroot, mung beans) and microgreens (kale, radish, beetroot, green peas, amaranth). Moreover, antioxidant capacity (2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS), ferric reducing ability of plasma (FRAP), and oxygen radical absorbance capacity (ORAC)), in vitro anti-diabetic potential (inhibition of α-amylase and α-glucosidase), and anti-obesity (pancreatic lipase) and anti-cholinergic (acetylcholinesterase and butyrylcholinesterase) activity were evaluated. The results of this study show that sprouts are effective in antioxidant capacity as a result of a high content of polyphenols and L-ascorbic acid. Additionally, sprouts are better sources of amino acids, pectins and sugars than microgreens. Microgreens were characterized by high content of carotenoids and chlorophylls, and organic acid, without any sugars, exhibiting higher anti-diabetic and anti-cholinergic activity than sprouts. Some selected sprouts (broccoli, radish, lentil) and microgreens (radish, amaranths, kale) should be used daily as superfoods or functional food.


2006 ◽  
Vol 50 (11) ◽  
pp. 1030-1038 ◽  
Author(s):  
Nicoletta Pellegrini ◽  
Mauro Serafini ◽  
Sara Salvatore ◽  
Daniele Del Rio ◽  
Marta Bianchi ◽  
...  

2018 ◽  
Vol 1 ◽  
Author(s):  
Ahmad Hasan Salahuddin Mirfat ◽  
Ismail Amin ◽  
Kassim Nur Kartinee ◽  
Hamid Muhajir ◽  
Mat Ali Mohd Shukri

Underutilised fruits are not only important sources of food and nutrition, but also secure household income especially for rural and farm communities. However, some of the underutilised fruits have not received much attention as compared to commercial fruits. This could be due to their lack of knowledge of their potential values. Hence, information about their health promoting properties is critical to increase the value of underutilised fruit species to enhance their preservation and sustainable use in strengthening food, nutrition, health and livelihood security. This article aims to provide a comprehensive review on the phytochemical properties and biological activities of underutilised fruit species grown in Malaysia focussing on health promoting aspects. With regard to phytochemistry, only 21 species of underutilised fruits have been identified and quantified. Phytochemical investigations of various parts of the fruits have revealed the presence of over 100 phytochemicals which are phenolics, terpenoids, carotenoids and other miscellaneous compounds. About 51 underutilised fruit species have been explored for interesting biological activities (antioxidant, antimicrobial, anticholinesterase, cytotoxicity, antiatherosclerotic, antihyperlipidemia, antidiabetic, cytoprotective, cardioprotective and antiplatelet activities) supporting their diverse traditional uses. Different parts of the fruits have been analysed mainly in vitro and barely in vivo, with pulp being the most dominant. Of all the underutilised fruits studied, Mangifera species and Canarium odontophyllum have been the major focus for researchers. The gaps obtained from this review create further research opportunities to add to the current knowledge of health promoting properties of underutilised fruits in Malaysia. More studies are needed to confirm the health significance and explain their mechanisms of action in order to fully understand the real potential of this underutilised fruit species.


Blood ◽  
2019 ◽  
Vol 134 (Supplement_1) ◽  
pp. SCI-37-SCI-37
Author(s):  
Anirban Sen Gupta

Platelets are primarily responsible for staunching bleeding by forming a 'platelet plug' and further amplifying thrombin generation on its surface to facilitate fibrin formation, leading to hemostatic clot formation at the site of vascular breach. Therefore, platelet transfusions are clinically used to mitigate bleeding risks in thrombocytopenia (prophylactic transfusion) and to mitigate hemorrhage in traumatic injuries (emergency transfusion). Currently these transfusions utilize donor-derived platelets, stored at 20-24oC with gentle agitation. In this condition, platelets have high risk of bacterial contamination and very short shelf-life (~ 5 days), which severely limit their logistical availability and use. Several parallel strategies are currently undergoing research to address these issues, including platelet storage at reduced temperatures (chilled or freeze-dried), pathogen reduction technologies and bioreactor-based in vitro platelet production from precursor cells. An alternative (and complimentary) approach that is the focus of our research is the engineering of I.V.-administrable synthetic hemostat nanoparticles that functionally mimic platelet's clotting mechanisms. These 'synthetic platelet' nanoparticle systems can be manufactured at large scale, sterilized without compromising functions and stored for long periods of time (6-9 months), thereby allowing significant logistical advantages in transfusion applications. Here we present in vitro and in vivo evaluation of such technology. For these studies, the 'synthetic platelet' nanoparticles were manufactured by decorating liposomes with a combination of VWF-binding, collagen-binding and fibrinogen-mimetic peptides, for integrative mimicry of platelet's hemostasis-relevant adhesive and aggregatory mechanisms. The nanoparticles were stored at room temperature in aqueous suspension as well as lyophilized powder, and particle stability was assessed over 6-9 months by dynamic light scattering (DLS). The nanoparticles were also exposed to E-beam sterilization, and particle stability as well platelet-mimetic bioactivity was assessed by DLS, aggregometry, microfluidics and rotational thromboelastometry (ROTEM). The systemic safety and targeted hemostatic efficacy of I.V.-administered nanoparticles were evaluated in mouse model of thrombocytopenia, and in mouse, rat and pig models of traumatic hemorrhage. DLS and electron microscopy confirmed that the synthetic platelet nanoparticles have a size of 150-200 nm diameter, and they remain stable over 6-9 months in storage. Microfluidic studies showed that these nanoparticles could rapidly adhere to 'vWF + collagen'-coated surfaces and enhance the recruitment and aggregation of active platelets on these surfaces. Aggregometry studies showed that the nanoparticles did not affect resting platelets but enhanced aggregation of ADP- or collagen-activated platelets (i.e. no thrombotic risk towards resting platelets). Flow cytometry studies confirmed this specificity of nanoparticle binding to active platelets. ROTEM studies showed that the 'synthetic platelet' nanoparticles significantly improved clot kinetics and firmness. In vivo, in all animal models, the nanoparticles showed no systemic pro-thrombotic effects, as assessed by hemodynamics as well as organ histology. In thrombocytopenic mice, prophylactically administered 'synthetic platelet' nanoparticles dose-dependently reduced tail bleeding time. In mouse, rat and pig trauma models, post-injury administration of 'synthetic platelet' nanoparticles reduced blood loss, stabilized blood pressure, delayed hypotension and thereby significantly improved survival. The nanoparticles could be further utilized as a platform for targeted presentation of phosphatidylserine (PS) to augment thrombin generation, or targeted delivery of tranexamic acid (TXA) for anti-fibrinolytic effect or delivery of inorganic polyphosphate (PolyP) to augment clot stability. These studies not only establish the potential of these nanoparticles as a platelet surrogate for transfusion applications, but also demonstrate their utilization as a platform for modular augmentation of various hemostatic outputs in prophylactic and emergency applications. Figure Disclosures Sen Gupta: Haima Therapeutics LLC: Equity Ownership.


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