Sustainable blueberry waste recycling towards biorefinery strategy and circular bioeconomy: A review

Liu, Huimin; Qin, Shiyi; Sirohi, Ranjna; Ahluwalia, Vivek; Zhou, Yuwen; Sindhu, Raveendran; Binod, Parameswaran; Singhnia, Reeta Rani; Patel, Anil Kumar; Juneja, Ankita; Kumar, Deepak; Zhang, Zengqiang; Kumar, Jitendra; Taherzadeh, Mohammad J.; Awasthi, Mukesh Kumar

doi:10.1016/j.biortech.2021.125181

Cited by 65 publications

(28 citation statements)

References 92 publications

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“…Therefore, even after increased labor costs are considered ($1050/ha), growers could reduce costs by replacing sawdust with biochar and, at the same time, increase returns by improving early fruit production. Additional savings could be obtained by producing biochar on-site using prunings and other waste from blueberry fields (Liu et al, 2021). It is unclear whether biochar would be beneficial beyond the second season, but if it was, the common practice of adding organic matter to the soil with a sawdust mulch every few years could be eliminated, reducing the production costs of blueberry even further.…”

Section: Discussionmentioning

confidence: 99%

Biochar as an Alternative Soil Amendment for Establishment of Northern Highbush Blueberry

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Bryla

Trippe

et al. 2022

horts

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Biochar, as a soil amendment, has been reported to improve plant growth by increasing soil moisture and retaining nutrients. In a previous 12-week greenhouse study with highbush blueberry (Vaccinium hybrid), we found that amending soil with biochar alone or in combination with bokashi (fermented wheat bran) increased plant growth relative to unamended soil. The biochar was produced from mixed conifer species during conversion of wood to energy. In the current study, we aimed to validate the greenhouse findings under field conditions in western Oregon. The specific objectives of this 2-year study were to determine the effect of amending soil with biochar or a combination of biochar and bokashi on growth and early fruit production during establishment of northern highbush blueberry (Vaccinium corymbosum L.). To achieve these objectives, we transplanted ‘Duke’ blueberry plants into soil that was either unamended or amended with biochar or 4:1 (v/v) mixtures of biochar and bokashi or biochar and douglas fir [Pseudotsuga menziesii (Mirb.) Franco] sawdust. Each amendment was either applied in the planting hole or incorporated into the row. A treatment with douglas fir sawdust incorporated into the row was also included and represented the industry standard for the region. Plants grown in soil amended with biochar (in the planting hole or row) had 40% to 74% greater total dry weight at the end of the first growing season and 70% to 82% greater fruit yield in the second season than those grown with no amendments or in soil amended with sawdust. However, leaf Mg concentrations were lower with biochar, suggesting it could limit Mg uptake in blueberry. Soil amended with sawdust, on the other hand, was higher in organic matter, microbial activity, and wet stable aggregates than the other soil treatments but resulted in lower leaf N concentrations during the second year after planting. Unlike in the greenhouse study, biochar had no effect on root colonization by mycorrhizal fungi, and there was no benefit to using biochar with bokashi. Adding 4 L of biochar to the planting hole was considerably more economical than applying it to the row and cost $1320/ha less than the industry standard of incorporating sawdust in the row. These findings indicate that biochar is a promising soil amendment for commercial production of highbush blueberry.

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Section: Discussionmentioning

confidence: 99%

Biochar as an Alternative Soil Amendment for Establishment of Northern Highbush Blueberry

Sales

Bryla

Trippe

et al. 2022

horts

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“…In particular, the fruit and vegetable supply chain results in approximately 90 million tons of residues per year in Europe, a number that is expected to grow in the coming years [ 2 ]. For instance, a large part of the total berry production is processed for juice production, and about 20–30% of that portion ends up as waste [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Microwave-Assisted Extraction of Polyphenols from Blackcurrant By-Products and Possible Uses of the Extracts in Active Packaging

Alchera

Ginepro

Giacalone

2022

Foods

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The design of experiment (DoE) approach was used to optimize the extraction of polyphenols from blackcurrant by-products with microwave-assisted extraction and deionized water as a green solvent. Three factors (microwave power, extraction time, and solvent/matrix ratio) were evauated, and a central composite orthogonal design (CCO) was applied in order to reduce experimental runs. Empirical models relating the response and process parameters were developed. The validity of the models was tested using an analysis of variance (ANOVA). The optimal extraction conditions were found using the highest value of microwave power (780–800 W) and the lowest extraction time (60 min) and solvent/matrix ratio (10 m/g). Compared with conventional solvent extraction, the polyphenol yield increased by 25% after applying the optimized MAE process. The obtained extract was used to realize a sustainable active maltodextrin (Glucidex 2) pad using an electrospinning technique. The antimicrobial and antioxidant activities of the pads were tested on the post-harvest storage of raspberries. Two set of experiments were carried out. The recorded results showed that the pad had antimicrobial activity on the tested fruit samples and implied the possibility of using it to extend the shelf-life of the fruits.

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“…A large number of by-products are produced during the processing and production of blueberry products. For example, the production of blueberry juice produces a large amount of residue (up to 20–30 % of the fresh fruit weight) ( Liu et al, 2021 ). These by-products are valuable sources of various high added-value compounds like polyphenols.…”

Section: Introductionmentioning

confidence: 99%

Recovering high value-added anthocyanins from blueberry pomace with ultrasound-assisted extraction

Zhang

Wang

et al. 2022

Food Chemistry: X

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Sustainable blueberry waste recycling towards biorefinery strategy and circular bioeconomy: A review

Cited by 65 publications

References 92 publications

Biochar as an Alternative Soil Amendment for Establishment of Northern Highbush Blueberry

Biochar as an Alternative Soil Amendment for Establishment of Northern Highbush Blueberry

Microwave-Assisted Extraction of Polyphenols from Blackcurrant By-Products and Possible Uses of the Extracts in Active Packaging

Recovering high value-added anthocyanins from blueberry pomace with ultrasound-assisted extraction

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