Valorisation of hazelnut by-products: current applications and future potential

Ceylan, Fatma Duygu; Adrar, Nabil; Bolling, Bradley W.; Capanoglu, Esra

doi:10.1080/02648725.2022.2160920

Cited by 6 publications

(4 citation statements)

References 124 publications

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“…Hazelnut is rich in phenolic compounds. It is peculiar to underline that the kernel, separated from the skin by a roasting process, is exceptionally abundant in dietary fibres, 11-14%, even compared to other nuts, such as almonds (9.3%) [91,92]. Once hazelnuts have been obtained, their fate is similar to that of almonds: the main uses include direct consumption (of both fresh and roasted seeds), confectionary preparations, and pastry and bakery productions.…”

Section: Hazelnutmentioning

confidence: 99%

Recent Innovations on the Reuse of Almond and Hazelnut By-Products: A Review

Ollani,

Peano,

Sottile

2024

Sustainability

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Nuts consumption has increased significantly in the last 10 years, especially driven by the stimulated awareness of their possible beneficial health effects. Increased nuts consumption is linked to an obvious accumulation of by-products and waste. With the view of the circular economy, the aim of this review is to analyse the recent and innovative approaches able to valorise the by-products derived from almonds and hazelnuts, two important nut products of the Italian scene, with historical and traditional importance. The most important solutions are concerned with reuse of almond hull, shell, skin, oil cake, and hazelnut shell; skin and oil cake are often considered waste or by-products. Many interesting implications in the feed and food sectors have been detected in the last ten years, aimed at designing innovative materials developed from by-products and extraction of bioactive molecules for different purposes. The perspective chosen to discuss the topic is related to the sustainability of these processes, in terms of both the environment and economy. The circular economy supports a zero-waste approach, which should not also be meant as a zero-cost process in terms of the level of technology that has been partially developed.

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Section: Hazelnutmentioning

confidence: 99%

Recent Innovations on the Reuse of Almond and Hazelnut By-Products: A Review

Ollani,

Peano,

Sottile

2024

Sustainability

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“…Hazelnuts are widely used in the food industry for the production of butter, chocolate, ice-cream, dairy products, confectionary and baking, and can also be added to yoghurts, breads, cereals, and liquors. Besides the food industry, hazelnuts can also be used as additives in cosmetic and pharmaceutical formulations [81]. Thus, the hazelnut crops have increased in many countries in recent years, and the hazelnut market is projected to reach a CARG (Compound Annual Rate of Growth) of 10% during the forecast period (2022-2027) [82].…”

Section: Hazelnutmentioning

confidence: 99%

Handheld Near-Infrared Spectroscopy: State-of-the-Art Instrumentation and Applications in Material Identification, Food Authentication, and Environmental Investigations

et al. 2023

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This present review article considers the rapid development of miniaturized handheld near-infrared spectrometers over the last decade and provides an overview of current instrumental developments and exemplary applications in the fields of material and food control as well as environmentally relevant investigations. Care is taken, however, not to fall into the exaggerated and sometimes unrealistic narrative of some direct-to-consumer companies, which has raised unrealistic expectations with full-bodied promises but has harmed the very valuable technology of NIR spectroscopy, rather than promoting its further development. Special attention will also be paid to possible applications that will allow a clientele that is not necessarily scientifically trained to solve quality control and authentication problems with this technology in everyday life.

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“…is a globally significant nut crop, with annual production of over 1 million tons, produced across 34 countries . This production is driven by a wide range of market uses across diverse industries, including food products, pharmaceuticals, and dietary supplements (Ceylan et al, 2022). Currently, commercial cultivation relies overwhelmingly on cultivars of European hazelnut (C. avellana) adapted to Mediterranean climates (Di Lena et al, 2022) with moderate winters to satisfy their chilling requirements (Mehlenbacher, 1991).…”

Section: Introductionmentioning

confidence: 99%

The first two chromosome-scale genome assemblies of American hazelnut enable comparative genomic analysis of the genusCorylus

Brainard

Sanders

Brůna

et al. 2023

Preprint

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The native shrub American hazelnut (Corylus americana) is currently used in breeding programs that are aiming to develop commercially viable hazelnut varieties for the U.S. Upper Midwestern U.S. This species provides significant ecological benefits as it is a perennial crop and well-adapted to this region. Breeding cycles for perennial species are long, and may benefit from the use of predictive methods such as genomic selection to reduce cycle time and increase the efficiency of field trials. High-quality reference genome assemblies are very useful for the implementation marker-assisted selection and genomic prediction, and we therefore developed the first chromosome-scale reference assemblies for C. americana, using the accessions 'Rush' and 'Winkler'. Initial draft assemblies were created using HiFi PacBio reads and Arima Hi-C sequencing to assemble genomes into 11 pseudomolecules. We then utilized Oxford Nanopore reads and a high-density genetic map in order to perform error correction. N50 scores were calculated to be 31.9 Mb and 35.3 Mb for 'Rush' and 'Winkler', respectively, while 97.1% (for 'Winkler') and 90.2% (for 'Rush') of the total genome was assembled into the 11 pseudomolecules. Gene prediction was performed using both RNAseq libraries as well as protein homology data. 'Rush' had a BUSCO score of 99.0 for its assembly and 99.0 for its annotation, while 'Winkler' had corresponding scores of 96.9 and 96.5, indicating extremely high-quality assemblies. These two independent, de novo assemblies enable unbiased assessment of structural variation across the genome, as well as patterns of syntenic relationships within C. americana and the Corylus genus. These assemblies are also an important first step in providing a resource for using next-generation sequencing data in the improvement of C. americana. We demonstrate this utility through the generation of high-density SNP marker sets from genotyping-by-sequencing data for 1,343 C. americana, C. avellana, and C. americana x C. avellana hybrids, in order to assess population structure in natural and breeding populations. Finally, the transcriptomes of these assemblies, as well as several other recently published Corylus genomes, were utilized to perform phylogenetic analysis of sporophytic self-incompatibility (SSI) in hazelnut, providing further evidence of unique molecular pathways governing self-incompatibility in Corylus not exhibited in other well-studied SSI systems. We hope these assemblies will aide in the application of modern breeding methods to the development of commercially viable hazelnut varieties for the U.S. Upper Midwest.

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Valorisation of hazelnut by-products: current applications and future potential

Cited by 6 publications

References 124 publications

Recent Innovations on the Reuse of Almond and Hazelnut By-Products: A Review

Recent Innovations on the Reuse of Almond and Hazelnut By-Products: A Review

Handheld Near-Infrared Spectroscopy: State-of-the-Art Instrumentation and Applications in Material Identification, Food Authentication, and Environmental Investigations

The first two chromosome-scale genome assemblies of American hazelnut enable comparative genomic analysis of the genusCorylus

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