Volatile and odorous compounds in unprinted paperboard

Odor-Active Compounds in Cardboard

“…From these substance groups, hexanal, octanal, nonanal, (E)-non-2-enal, and (E,E)-deca-2,4-dienal have previously been identified as odor-active constituents in cardboard by HRGC-O (2, 15). In a further investigation, about 50 volatiles were identified in 8 cardboards, which exhibited good odor qualities as well as off-flavors, whereby these substances were detected in nearly every sample (11). Many unsaturated aldehydes were identified, and the concentrations of some aldehydes by far exceeded the corresponding odor thresholds in off-flavor samples.…”

An Analytical Approach for Fast Odour Evaluation of Recycled Food–Grade Paperboard Materials Using HS–SPME–MS‐Nose Technology

“…1‐pentanol, 1‐heptanol) were also classified at the negative PC2 axis. Probably, a combination of these volatiles could contribute in an important way to the typical ‘paperboard odour’ character . REP1 was situated close to these volatiles.…”

“…The characteristic m / z value of 1‐octen‐3‐ol ( m / z 57) was eliminated during feature selection because of the presence of relatively high concentrations of MOSH in the paperboard samples. 1‐Octen‐3‐ol stemmed from the autoxidation of unsaturated lipids present in wood pulp or from fermentation processes within the process water circuit . Also m / z 44, a characteristic m / z value of hexanal (relative contribution: 100%), was eliminated during feature selection because of the presence of CO 2 , an impurity in the used carrier gas.…”

“…Because of this, hexanal, which had significant ( P < 0.001) high levels in REP3 and REP4, could not be related to the MS‐nose classification. As 1‐octen‐3‐ol and hexanal were described several times as key odour impact volatiles in recycled paperboard materials, the obtained MS‐nose classification was not based on their characteristic m / z values.…”

Screening for Chemicals in Paper and Board Packaging for Food Use: Chemometric Approach and Estimation of Migration

“…2‐(2‐Butoxyethoxy) ethanol was noticed as an important marker for these samples; it is a well‐known solvent arising from paints, dyes, inks, detergents and cleaners. In other papers, its concentration was linked to the quantity and type of waste material used in the production of P&B packaging and to the effectiveness of the de‐inking processes. Close to 2‐(2‐butoxyethoxy) ethanol are located pentadecane and hexadecane, coded as variables 15 and 18, respectively.…”