Research Topics
| Pirjo MattilaSummaryAffiliation: MTT Agrifood Research Finland Country: Finland Publications
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Detail Information
Publications
Determination of flavonoids in plant material by HPLC with diode-array and electro-array detectionsP Mattila
Agricultural Research Centre of Finland, Food Research, L talo, 31600 Jokioinen, Finland
J Agric Food Chem 48:5834-41. 2000..999. Coefficient of variation was under 10.5%, and recoveries of flavonoids ranged from 70 to 124%. Purity of the flavonoid peaks was confirmed by combining the spectral and voltammetric data...- Contents of phenolic acids, alkyl- and alkenylresorcinols, and avenanthramides in commercial grain productsPirjo Mattila
MTT Agrifood Research Finland, Food Research and Chemistry Laboratory, FIN 31600 Jokioinen, Finland
J Agric Food Chem 53:8290-5. 2005..In addition, whole-grain rye products (rye bread, rye flour, and whole-wheat flour) contained considerable levels of alk(en)ylresorcinols (524, 927, and 759 mg/kg, respectively)... - Cholecalciferol and 25-hydroxycholecalciferol content of chicken egg yolk as affected by the cholecalciferol content of feedP Mattila
Agricultural Research Centre of Finland, FIN 316 000, Jokioinen, Finland
J Agric Food Chem 47:4089-92. 1999..According to the present study, there was strong positive correlation between cholecalciferol content in poultry feed and cholecalciferol (r = 0. 995) and 25-hydroxycholecalciferol (r = 0.941) content in egg yolk... - Phenolic acids in berries, fruits, and beveragesPirjo Mattila
MTT Agrifood Research Finland, Biotechnology and Food Research, ET talo, FIN 31600 Jokioinen, Finland
J Agric Food Chem 54:7193-9. 2006..Caffeic acid dominated in all of these samples except in tea brews. Variation in the phenolic acid contents of the berries was either small or moderate... - Effect of vitamin D2- and D3-enriched diets on egg vitamin D content, production, and bird condition during an entire production periodP Mattila
MTT Agrifood Research Finland, Food Research, FIN 31600 Jokioinen, Finland
Poult Sci 83:433-40. 2004..However, especially vitamin D3 improved bone strength (P < 0.05). Autopsy at the end of the experiment indicated no detrimental accumulation of calcium in the kidneys, liver, heart, muscles, or lungs... - Effect of cholecalciferol-enriched hen feed on egg qualityPirjo Mattila
Food Research, MTT Agrifood Research Finland, FIN 31600 Jokioinen, Finland
J Agric Food Chem 51:283-7. 2003..Moreover, the cholecalciferol levels used in this study appeared not to affect eggshell strength or to be harmful for hens... - Basic composition and amino acid contents of mushrooms cultivated in FinlandPirjo Mattila
MTT Agrifood Research Finland, FIN 31600 Jokioinen, Finland
J Agric Food Chem 50:6419-22. 2002..The mean nitrogen-to-protein conversion factor analyzed in the present study was 4.7 +/- 0.21. When using this factor, a very good estimation of protein contents could be obtained for the main species of mushrooms cultivated in Finland... - Determination of free and total phenolic acids in plant-derived foods by HPLC with diode-array detectionPirjo Mattila
MTT Agrifood Research Finland, Food Research, ET talo, 31600 Jokioinen, Finland
J Agric Food Chem 50:3660-7. 2002..Recovery tests of phenolic acids were performed for every hydrolysis condition using several samples. Recoveries were generally good (mean >90%) with the exceptions of gallic acid and, in some cases, caffeic acid samples... - Contents of vitamins, mineral elements, and some phenolic compounds in cultivated mushroomsP Mattila
Agricultural Research Centre of Finland, Food Research, Building L, 31600 Jokioinen, Finland
J Agric Food Chem 49:2343-8. 2001..2 mg/kg dw) and the levels of Cd were quite high in L. edodes (1.2 mg/kg dw). No flavonoids or lignans were found in the mushrooms analyzed. In addition, the phenolic acid contents were very low... - Comparison of in-line connected diode array and electrochemical detectors in the high-performance liquid chromatographic analysis of coenzymes Q(9) and Q(10) in food materialsP Mattila
Agricultural Research Centre of Finland, Food Research, L talo, 31600 Jokioinen, Finland
J Agric Food Chem 48:1229-33. 2000..2 and 0.3 ng/injection by EC detection. Results derived from the two detection systems were generally similar. However, although EC detector was 20-fold more sensitive, the selectivity was, in some cases, poorer than that of DAD... 
Effect of different vitamin D supplementations in poultry feed on vitamin D content of eggs and chicken meatPirjo H Mattila
Biotechnology and Food Research, MTT Agrifood Research Finland, Jokioinen, Finland
J Agric Food Chem 59:8298-303. 2011..However, because the relative activity between 25-OH-D(3) and vitamin D(3) is unknown, it remains questionable whether the use of 25-OH-D(3) in hens' feed is beneficial to human vitamin D intake from eggs...- Isolation and structure elucidation of procyanidin oligomers from Saskatoon berries (Amelanchier alnifolia)Jarkko Hellström
MTT Agrifood Research Finland, Biotechnology and Food Research, Myllytie 1, FI 31600, Jokioinen, Finland
J Agric Food Chem 55:157-64. 2007..In the future they can be used as standard compounds for qualitative and quantitative analysis of procyanidins as well as for elucidation of the biological activities of proanthocyanidins... - Favorable effects of berry consumption on platelet function, blood pressure, and HDL cholesterolIris Erlund
Biomarker Laboratory, Department of Health and Functional Capacity, National Public Health Institute, Helsinki, Finland
Am J Clin Nutr 87:323-31. 2008..Whether the consumption of berries has similar effects is unknown... - Dietary intake and major food sources of polyphenols in Finnish adultsMarja Leena Ovaskainen
Department of Health Promotion and Chronic Disease Prevention, Nutrition Unit, National Public Health Institute, FI 00300 Helsinki, Finland
J Nutr 138:562-6. 2008..The results give additional support to the recommendations for a varied diet with fruits, berries, cereals, and vegetables...