Wood hemicelluloses as sustainable wall materials to protect bioactive compounds during spray drying of bilberries

Halahlah, Abedalghani; Räikkönen, Heikki; Piironen, Vieno; Valoppi, Fabio; Mikkonen, Kirsi S.; Ho, Tu Bao

doi:10.1016/j.powtec.2022.118148

Cited by 10 publications

(1 citation statement)

References 91 publications

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“…While the microencapsulation of anthocyanins and polyphenols from juice, wine, and liquid fruit extracts of the mentioned plants has been implemented in various studies to preserve bioactive compounds or make their application easier [39][40][41][42][43][44][45], information on the preservation of polyphenols from the leaves is still scarce [46]. To our knowledge, this is the first study to investigate the effects on the preservation of A. melanocarpa and V. myrtillus polyphenols originating from the leaves using pectin and HP-β-CD as carriers.…”

Section: Introductionmentioning

confidence: 99%

Microencapsulated Bilberry and Chokeberry Leaf Extracts with Potential Health Benefits

Kuzmanović Nedeljković,

Radan,

Ćujić Nikolić

et al. 2023

Plants

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The aim of the research was to develop microencapsulated powders of bilberry and chokeberry extracts via the spray drying technique. Two biopolymers, pectin alone and in combination with HP-β-CD, were used to preserve the antioxidant, hypoglycemic, photoprotective, and antimicrobial bioactivity of the berry leaf extracts. Moreover, the formed powders were characterized in terms of technological, chemical, and several biological properties. The obtained micro-sized powders (mean average particle diameter from 3.83 to 5.94 µm) demonstrated a process yield of up to 73%. The added biopolymers improved the flowability and cohesive properties of the powders and increased their thermal stability to 170 °C. The total content of polyphenolics in the powders ranged from 323.35 to 367.76 mg GAE/g DW for bilberry and from 186.85 to 227.59 mg GAE/g DW for chokeberry powders; meanwhile, chlorogenic acid was the predominant compound in powders. All samples showed stronger α-glucosidase inhibitory activity (IC50 values ranged from 5.00 to 19.59 µg/mL) compared with the reference standard. The study confirmed that spray drying is a suitable method for the preservation of the polyphenolic-rich extracts, while the addition of carriers has a positive effect on the improvement of microencapsulated powders’ properties.

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Section: Introductionmentioning

confidence: 99%

Microencapsulated Bilberry and Chokeberry Leaf Extracts with Potential Health Benefits

Kuzmanović Nedeljković,

Radan,

Ćujić Nikolić

et al. 2023

Plants

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Recent microencapsulation trends for enhancing the stability and functionality of anthocyanins: a review

Ijod,

Nawawi,

Anwar

et al. 2024

Food Sci Biotechnol

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Protective Effects of Polysaccharides on Antifungal Activity of Bread Waste-derived Bioactive Peptides During Freeze Drying

Santangelo,

Halahlah,

Adesanya

et al. 2024

Food Bioprocess Technol

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Bioactive peptides (BPs) derived from agri-food side-streams display great potential as functional ingredients and nutraceuticals. However, BPs can be susceptible to environmental stressors and food processing conditions and typically exist as an aqueous mixture of various peptides, making their storage and use in foods very challenging. Microencapsulation offers a solution, utilizing suitable wall materials to create a protective matrix and transform them into powders for improved stability and application versatility. Here, we investigated the possibility of creating freeze-dried microencapsulated BP powders from bread waste using maltodextrin as the wall material to maintain their antifungal properties against Penicillum albocoremium, Eurotium herbariorum and Penicillium roqueforti fungi. The results were compared to those obtained from galactoglucomannans (GGM) and glucuronoxylans (GX) sourced from forest industry side-streams, aiming to explore their potential suitability as innovative materials for microencapsulating BPs. Maltodextrin microcapsules exhibited the highest inhibition rate on the tested fungi (10 − 44%), followed by GX (26 − 39%) and then GGM (9 − 14%) counterparts. Interactions between wall materials and BPs, as illustrated by FTIR analyses, were found to be the cause of variations in antifungal activities among BP microcapsules. The use of wall materials, especially wood hemicelluloses, facilitated freeze drying of BPs. However, their application in food products is restricted by the decline in the BP bioactivity resulting from the freeze drying process. For this reason, additional research on alternative drying methods is needed. The results of this study are expected to open new ways of production of stable functional ingredients from side-streams of the forest and food industries.

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Wood hemicelluloses as sustainable wall materials to protect bioactive compounds during spray drying of bilberries

Cited by 10 publications

References 91 publications

Microencapsulated Bilberry and Chokeberry Leaf Extracts with Potential Health Benefits

Microencapsulated Bilberry and Chokeberry Leaf Extracts with Potential Health Benefits

Recent microencapsulation trends for enhancing the stability and functionality of anthocyanins: a review

Protective Effects of Polysaccharides on Antifungal Activity of Bread Waste-derived Bioactive Peptides During Freeze Drying

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