| 1. |
- Burri, Stina C.M., et al.
(författare)
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Lipid oxidation inhibition capacity of plant extracts and powders in a processed meat model system
- 2020
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Ingår i: Meat Science. - : Elsevier BV. - 0309-1740 .- 1873-4138. ; 162
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Tidskriftsartikel (refereegranskat)abstract
- A meat model system was used for screening lipid oxidation inhibiting capacity of diverse horticultural plant materials. In the model, heme-containing sarcoplasmic proteins from the meat water-phase were homogenized with linoleic acid and thiobarbituric reactive substances (TBARS) were measured. 23 Plant materials were investigated at three high (50, 100, and 200 ppm) concentrations and five plant extracts were tested at three low (5, 10, and 20 ppm) concentrations over time. In the high concentration sets, summer savory freeze-dried powder, beetroot leaves extracted with 50% ethanol, and an olive polyphenol powder extracted from wastewater, inhibited oxidation the most effectively. After two weeks and at 200 ppm concentration, oxidation was reduced to 17.2%, 16.6% and 13.5% of the blank sample with no added antioxidants respectively. In the low concentration set, spray dried rhubarb juice inhibited oxidation the most after two weeks at 5 ppm where oxidation was reduced to 68.3% of the blank sample with no added antioxidants.
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| 2. |
- Burri, Stina, et al.
(författare)
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Processed meat products with added plant antioxidants affect the microbiota and immune response in C57BL/6JRj mice with cyclically induced chronic inflammation
- 2021
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Ingår i: Biomedicine and Pharmacotherapy. - : Elsevier BV. - 1950-6007 .- 0753-3322. ; 135
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Tidskriftsartikel (refereegranskat)abstract
- Epidemiological studies have found that there is a correlation between red and processed meat consumption and an increased risk of colorectal cancer. There are numerous existing hypotheses on what underlying mechanisms are causative to this correlation, but the results remain unclear. A common hypothesis is that lipid oxidation, which occurs in endogenous lipids and phospholipids in consumed food, are catalyzed by the heme iron in meat. In this study, five pre-selected plant antioxidant preparations (sea buckthorn leaves and sprouts, summer savory leaves, olive polyphenols, onion skin and lyophilized black currant leaves) were added to a meatball type prone to oxidize (pork meat, 20 % fat, 2% salt, deep-fried and after 2 weeks of storage). Pro-inflammatory markers, neutrophil infiltration and microbiota composition were studied after four months in a chronic inflammation model in C57BL6/J female mice. We found that the bacterial diversity index was affected, as well as initial immunological reactions.
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| 3. |
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| 4. |
- Nybom, Hilde, et al.
(författare)
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Growing English and French cider apple cultivars in Sweden
- 2020
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Ingår i: Acta Horticulturae. - 0567-7572 .- 2406-6168. ; , s. 9–14-
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Konferensbidrag (refereegranskat)abstract
- Production of alcoholic apple cider has a long tradition in especially England, France and Spain. The designated cider apple cultivars grown in these countries are closely related to dessert apples but have a higher content of phenols, with procyanidins (tannins) and possibly other phenolic compounds providing the distinct cider aroma. A recently planted observation trial, together with data collected in a commercial orchard, have provided valuable information on the feasibility of growing English and French cider apple cultivars in southern Sweden. Chemical contents (sugar, acid and phenols) were determined in fruit juice of 21 cider apple cultivars in 2016 and 2017. In spite of the delayed fruit ripening in Sweden, contents were on the whole quite similar to what has been reported previously for the same cultivars in their countries of origin. Large-scale cider production may necessitate storage of the harvested fruit for some weeks or months before juicing, and thus tolerance to storage rots is highly desirable. Despite their higher phenolics content, cider apple cultivars were somewhat more susceptible to blue mold (Penicillium exansum) than dessert cultivars, as determined in fruit inoculation experiments.
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| 5. |
- Nybom, Hilde, et al.
(författare)
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Review of the Impact of Apple Fruit Ripening, Texture and Chemical Contents on Genetically Determined Susceptibility to Storage Rots
- 2020
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Ingår i: Plants. - : MDPI AG. - 2223-7747. ; 9
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Forskningsöversikt (refereegranskat)abstract
- Fungal storage rots like blue mould, grey mould, bull's eye rot, bitter rot and brown rot destroy large amounts of the harvested apple crop around the world. Application of fungicides is nowadays severely restricted in many countries and production systems, and these problems are therefore likely to increase. Considerable variation among apple cultivars in resistance/susceptibility has been reported, suggesting that efficient defence mechanisms can be selected for and used in plant breeding. These are, however, likely to vary between pathogens, since some fungi are mainly wound-mediated while others attack through lenticels or by infecting blossoms. Since mature fruits are considerably more susceptible than immature fruits, mechanisms involving fruit-ripening processes are likely to play an important role. Significant associations have been detected between the susceptibility to rots in harvested fruit and various fruit maturation-related traits like ripening time, fruit firmness at harvest and rate of fruit softening during storage, as well as fruit biochemical contents like acidity, sugars and polyphenols. Some sources of resistance to blue mould have been described, but more research is needed on the development of spore inoculation methods that produce reproducible data and can be used for large screenings, especially for lenticel-infecting fungi.
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| 6. |
- Nybom, Hilde, et al.
(författare)
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The Systematics, Reproductive Biology, Biochemistry, and Breeding of Sea Buckthorn—A Review
- 2023
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Ingår i: Genes. - 2073-4425. ; 14
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Forskningsöversikt (refereegranskat)abstract
- Both the fruit flesh and seeds of sea buckthorn have multiple uses for medicinal and culinary purposes, including the valuable market for supplementary health foods. Bioactive compounds, such as essential amino acids, vitamins B, C, and E, carotenoids, polyphenols, ursolic acid, unsaturated fatty acids, and other active substances, are now being analyzed in detail for their medicinal properties. Domestication with commercial orchards and processing plants is undertaken in many countries, but there is a large need for improved plant material with high yield, tolerance to environmental stress, diseases, and pests, suitability for efficient harvesting methods, and high contents of compounds that have medicinal and/or culinary values. Applied breeding is based mainly on directed crosses between different subspecies of Hippophae rhamnoides. DNA markers have been applied to analyses of systematics and population genetics as well as for the discrimination of cultivars, but very few DNA markers have as yet been developed for use in selection and breeding. Several key genes in important metabolic pathways have, however, been identified, and four genomes have recently been sequenced.
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| 7. |
- Rumpunen, Kimmo
(författare)
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Chromatographic characterization of juice in fruits of different Japanese quince (Chaenomeles japonica L.) genotypes cultivated in Sweden
- 2020
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Ingår i: Emirates Journal of Food and Agriculture. - : Faculty of Food and Agriculture, United Arab Emirates University. - 2079-052X .- 2079-0538. ; 32, s. 816-825
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Tidskriftsartikel (refereegranskat)abstract
- The juice in fruits of 19 genotypes of Japanese quince (Chaenomeles japonica), representing plant breeding material, was characterised using high performance liquid chromatography. The juice was extracted by halving and squeezing the fruit. Samples of Japanese quince juice were always analysed fresh. The main compounds found were sugars: glucose (131-1056 mg 100 ml(-1)), fructose (351-2515 mg 100 ml(-1)) and sorbitol (10-367 mg 100 ml(-1)); organic acids: malic acid (2.27-4.84 g 100 ml(-1)) and quinic acid (0.50-2.50 g 100 ml(-1)); amino acids: aspartic acid (0.8-10.7 mg 100 ml(-1)), asparagine (0.2-36.3 mg 100 ml(-1)) and glutamic acid (6.2-17.7 mg 100 ml(-1)); the cation potassium (145-214 mg 100 ml(-1)) and the anion fluoride (21-122 mg 100 ml(-1)). These results on composition suggest that Japanese quince may be an interesting raw material source of valuable substances and its juice an ingredient for the food industry. A principal components analysis separated the Japanese quince genotypes, thus indicating a clear difference in the chemical composition of the juice.
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| 8. |
- Rumpunen, Kimmo, et al.
(författare)
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Flera nya utländska äppelsorter har bra kvalitet men är känsliga för sjukdomar
- 2021
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Ingår i: LTV-fakultetens faktablad.
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Odlarna vill ha nya sorter med bättre egenskaper, som gör det möjligt att bedriva hållbar och konkurrenskraftig odling av kvalitetsfrukt i Sverige. I detta faktablad sammanfattas resultat från två projekt med syftet att utvärdera odlings- och kvalitetsegenskaper hos några dessert- och mustäpplesorter, som nyligen tagits fram genom växtförädling.
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| 9. |
- Rumpunen, Kimmo
(författare)
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Genetic Characterization of the Norwegian Apple Collection
- 2023
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Ingår i: Horticulturae. - 2311-7524. ; 9
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Tidskriftsartikel (refereegranskat)abstract
- Commercial fruit production in Norway is located at around latitude 60 degrees north, demanding a careful choice of adapted cultivars. The most comprehensive collection of apple genetic resources in Norway is being kept in the Norwegian Apple Collection (NAC) at the Njos Fruit and Berry Centre (NJOS). The collection contains around 350 accessions and was recently genotyped with a single nucleotide polymorphism (SNP) array. Curated SNP data were used for the assessment of structure and diversity, pedigree confirmation, and core collection development. In the following SNP analysis, we identified several duplicates and parent-child relationships. Across the geographic regions represented, the collection was equally diverse. Different methods for analyzing population structure were applied. K-means clustering and a Bayesian modeling approach with prior assumptions of the data revealed five subpopulations associated with geographic breeding centers. The collection has a distinct genetic structure and low relatedness among the accessions; hence, two core collections with 100 accessions in each were created. These new core collections will allow breeders and researchers to use the NAC efficiently. The results from this study suggest that several of the accessions in the Norwegian Apple Collection could be of high importance for breeding purposes.
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| 10. |
- Rumpunen, Kimmo, et al.
(författare)
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Många cideräppelsorter är känsliga för skorv men ger unik arom
- 2021
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Ingår i: LTV-fakultetens faktablad.
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- I Sverige finns ingen tradition av att odla cideräpplen men intresset för att tillverka lokal cider har ökat markant under senare år. I detta faktablad sammanfattas resultat från två projekt som genomförts för att utvärdera och introducera nya cideräpplesorter för odling och vidareförädling i Sverige.
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