Development of a functional drink enriched with folate and iron in consideration of nutritive and sensory aspects

Transcription

1 Development of a functional drink enriched with folate and iron in consideration of nutritive and sensory aspects Brombach C 2, Riemer M 1, Good S 2, Brunner U 2, Böhm V 1, Breymann C 3, Hühn T 2 1 Friedrich Schiller Universität, Jena 2 Zürcher Hochschule Angewandte Wissenschaften, Wädenswil 3 Gynäkologie Geburtshilfe Seefeld, Zürich 2nd Swiss Food Tech Day 2011 Zurich University of Applied Sciences 1

2 Outline Introduction Background of the study Development of a functional drink Outlook 2

3 School of Life Sciences und Facility Management Zurich University of Applied Sciences 3

4 Competences 4

5 Institute of Food and Beverage Innovation 5

6 Mission Statement of the Institute Flavourful, safe and nutritious foods from raw material to the consumer 6

7 The 4 fields of research - ILGI Development of added value and marketable food idea consumer consumer needs nutritional needs sensory preference targeted group nutritional concepts availability logistic, distribution supply chain energy-efficient planning value determining parameters shelf life and safety food safety shelf life active and intelligent packaging composition selection of high value raw materials and processing technologies for new products developing desired and undesired aromas extraction technologies 7

8 Starting Situation - increased energy intake and higher levels of most essential nutrients are required mainly Iron and Folic Acid - therefore supplementation (tablets) during pregnancy and lactation is generally recommended BUT: Gastrointestinal Problems, Reluctance towards taking tablets or insufficient knowledge about the importance of folate and iron during pregnancy and lactation could have bad effects

9 Folic Acid important for formation and cleavage of cells Low level of iontake and blood level increases risk for: - malformations: Neural Tube Defects (NTD) (80 in CH per year) Cleft lip and palate Congenital Heart defects - Anemia 600 µg per day (DACH-Referenzwerte)

10 Iron Important for hematopoiesis and oxygen supply Low intake and blood level increases risk for: Anemia Low oxygen supply Susceptibility of infection mg per day (DACH-Referenzwerte) 10

11 The aim to develop a functional drink fortified with minerals and vitamins with high compliance and effectiveness in the target group /5729/vitamintabletten-l.jpg?t=

12 Production Process Mixture I Water Apple (concentrate) Flavor Mixture II Vitamines and Minerales Fatty-Acid Guar Gum Filling Bottles Pasteurization & Labeling Martina Riemer Martina Riemer 12

13 Toxicity Drink should meet requirements but without an overdosage for women in pregnancy or lactation children in household Vitamin D addition of 7,5 µg in 250 ml UL = 25 µg/d for children (2-10 years) for 750 ml = 22,5 µg Vitamin D Hm yummy! Kind_kuehlschrank-196x134.jpg Vitamin A teratogenic Effects UL Upper Intake Level ß-Carotin 13

14 Stability and Sensory aspects Addition some Stabilizers and emulsifying Agents were testet Thickening agent: Guar Gum best Results Martina Riemer Off-Flavor because of Fatty Acids and Aroma best Results in Aroma and Fatty acids Martina Riemer 14

15 Laboratory Tests during 4 weeks Stability 4, 23 und 35 C Activity of Vitamin C Sensory Changes Microbiological Tests Antioxidant Activity Color Changes All tests have been conducted at 4 C and 23, 35 15

16 Shelf life during 4 weeks Microbiological: no mold or yeast growth Vitamin C: Stable 4 C and 23 C ph-wert 4 Color changes: stable little phase separation Antioxidant Activity: Relative stable 4 C and 23 C Correcting by shaking A continuous storage at 4 is maintained throughout the study! 16

17 _images/thumbnail_images/17_0.jpg Package 1 Liter Lightproof Stable against heat (65 C) Suitable for labeling 17

18 Study: Effectiveness, Digestibility and Compliance Food Frequency Questionnaire (FFQ): to evaluate the nutritional behavior ( Questionnaire for the drink: 0. week 2. week 4. week for assessing the digestibiity and compliance Fragebogen2.JPG Effectiveness will be measured with blood parameters 18

19 Prof. Dr. C. Brombach Prof. Dr. med. C. Breymann Prof. Dr. T Hühn Leitung Fachstelle FMH Gynäkologie & Geburtshilfe Leitung Getränke- & Consumer Sciences Tel. +41/ & Aromaforschung Tel. +41/ breymann@ggs-zh.ch Tel. +41/ Christine.brombach@zhaw.ch tilo.huehn@zhaw.ch 19