1. Anttonen MJ, Karjalnen RO (2006) J Agric Food Chem 54:7530–7538
2. AOAC (1995) Method 920.152: protein in fruit products, Kjeldahl method. In: Official method of analysis, 16th edn. AOAC, Arlington
3. AOAC (1995) Method 930.09: ether extract of plants. In: Official method of analysis, 16th edn. AOAC, Arlington
4. AOAC (1995) Method 932.12: soluble solids in fruits and fruit products. In: Official method of analysis, 16th edn. AOAC, Arlington
5. AOAC (1995) Method 940.26: ash of fruits and fruit products. In: Official method of analysis, 16th edn. AOAC, Arlington