| AP | apple-derived pectin |
| CP | citrus-derived pectin |
| DE | degree of esterification |
| FCS | fetal calf serum |
| GalA | galacturonic acid |
| HG | homogalacturonan |
| HMP | high methoxyl pectin |
| LMP | low methoxyl pectin |
| MW | molecular weight |
| nPru p 3 | natural Pru p 3 |
| nsLTP | non-specific lipid transfer protein |
| OAS | oral allergy syndrome |
| RG | rhamnogalacturonan |
| XGA | xylogalacturonan |