Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2010
Forfattere
Reidun PommerescheSammendrag
Foredrag om ulike organismer i jord, deres funksjoner og samspill med planter.
Forfattere
Lise Gunn Skretteberg Børge Holen Marit Lilleby Kvarme Birgitte LyrånSammendrag
Det er ikke registrert sammendrag
Forfattere
Svein SkøienSammendrag
Det er ikke registrert sammendrag
Forfattere
Eivind Vangdal Sigrid Flatland Rune SlimestadSammendrag
Due to positive health effects, the consumption of fruits and vegetables ought to increase in Norway. The content of coloured anthocyaninsand other phenoliccompounds with antioxidativeeffect are believed to be important in this matter. In previous reports the wide ranges in contents of important phenolicsin different plum cultivars were presented (Vangdal et al., 2007). This presentation include analyses of minor phenolicacids and flavonols, as well as some data on effects of fertilization and storage on phenolics.
Forfattere
L M M Tijskens S Jacob R E Schouten J P Fernandez-Trujillo N Dos-Santos Eivind Vangdal E Pagan A Perez PastorSammendrag
The water loss of individual fruit (melon, plum and mandarin) was analysed using the traditional diffusion based approach and a kinetic approach. Applying simple non linear regression, both approaches are the same, resulting in a quite acceptable analysis. However, by applying mixed effects non linear regression analysis, explicitly including the variation over the individuals, the kinetic approach was found to reflect the processes occurring during mass loss better than the diffusion approach. All the variation between the individuals in a batch could be attributed to the initial mass or size of the individuals. The fraction of the fruit mass that is available for transpiration is the key item in the water loss process, rather than the skin resistance and fruit area. Obtained explained parts are well over 99%.
Forfattere
S Jacob Eivind Vangdal A Torricelli L Spinelli M Vanoli P Eccher Zerbini L M M Tisjkens E MadietaSammendrag
Absorption and scattering of laser light pulse passing through the fruit determine among others, the optical properties of the product. Efforts have been made in the recent past to utilize innovative techniques such as time-resolved reflectance spectroscopy (TRS) to study the quality aspects of different fruit such as nectarines. These optical properties have been well related to firmness, sugars, acids and other quality attributes. TRS measurements were performed on ‘Jubileum" plums at two different wavelengths: 670 nm and 758 nm. The fruit were harvested in Norway and brought to Italy under protected conditions. After sorting the fruit by size, TRS measurements were made and the fruit were randomized for different examinations of quality aspects. It was observed that the absorption coefficient (μa) increased for both wavelengths as ripening progressed towards the melting stage of the fruit. The μa values at 670 nm were higher than those at 758 nm. The higher rate in the μa was distinguishable from the third day onwards as the fruit ripened. Similarly, it was interesting to note that the internal colour measured after destructing the fruit related well with the TRS absorption coefficient (μa), i.e., a decrease in the CIE L* (towards darker region) and b* (towards blue) value along with an increase in a* (towards red) from third day of storage.
Forfattere
M Vanoli S Jacob P Eccher Zerbini Eivind Vangdal A Torricelli L SpinelliSammendrag
In plum fruit with dark red or blue blush colour covering the whole fruit, the change in ground colour from green to yellow during maturation and ripening is masked. Hence, the maturity stage is difficult to judge. Time-resolved reflectance spectroscopy (TRS) has been used as a nondestructive method to assess changes in important internal quality factors in ‘Jubileum" plums (Prunus domestica L.). Absorption coefficients (μa) and scattering coefficients (μs) were measured at both 670 and 758 nm during 5 days of storage. The changes in soluble solids content, titratable acidity and firmness were as expected. No change in soluble solids content was observed, while the plums became less acid and softer during storage. The TRSmeasurements of plums indicated that TRS could give interesting information on internal quality factors in plums as the absorption at 670 nm was closely related to firmness, TA and TSS at the time of picking. Absorption at 758 nm was more closely related to the quality parameters after storage. The study did not indicate that scattering could be used in assessing maturity stage in plum.
Forfattere
Ove BergersenSammendrag
Det er ikke registrert sammendrag
Forfattere
Ove BergersenSammendrag
Det er ikke registrert sammendrag
Forfattere
Ove BergersenSammendrag
Det er ikke registrert sammendrag