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Examination of some microbiological and biochemical parameters and tests of product quality used in a long-term fertilization trial

Published online by Cambridge University Press:  30 October 2009

Joachim Raupp
Joachim Raupp
Affiliation:
Senior scientist (team leader, long-term trial), Institute for Biodynamic Research, Brandschneise 5, D-64295 Darmstadt, Germany; raupp@aol.com.
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Abstract

On the basis of investigations with samples from a fertilization trial started in 1980, some parameters of food storage ability are evaluated. Microbial infestation of the product during incubation seems to be the most reliable parameter, but the circumstances of infestation and the optimal test conditions are unknown. There are no reliable correlations among the results of degradation tests, storage tests under optimal conditions, and chemical contents of the product. The concept of product vitality (a product-oriented quality referring to a product full of vigor) is based on results of degradation tests. Ultimately, however, food quality standards are based on human priorities (human-oriented). Therefore, not only product characteristics, but also social, psychological, and environmental criteria should be considered.

Keywords

storage abilityfood qualitydegradation testsquality assessmentorganic farmingbiodynamic agriculture
Type
Articles
Information
American Journal of Alternative Agriculture , Volume 13 , Issue 3 , September 1998 , pp. 138 - 144
Copyright
Copyright © Cambridge University Press 1998

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References

1.Abele, U. 1987. Produktqualität und Düngung: mineralisch, organisch, biologisch-dynamisch. (Product quality and fertilization: mineral, organic, biodynamic.) Angewandte Wissenschaft, Heft 345. Münster-Hiltrup, Germany.Google Scholar
2.Alvensleben, R. v., and Altmann, M.. 1986. Die Nachfrage nach alternativen Nahrungsmitteln. (The demand for organic food.) Agrarwirtschaft 35:289–295.Google Scholar
3.Baade, E. 1987. Verhaltensweisen und Werthaltungen bei Käufern alternativ erzeugter Lebensmittel. (Behavior patterns and values of consumers of organically produced food.) In Report on a Workshop Held at Stuttgart-Hohenheim, 10 1–3, 1986. AID, Bonn, Germany, pp. 28–35.Google Scholar
4.Bachinger, J. 1996. Der Einfluβ unterschiedlicher Dungungsarten (mineralisch, organisch, biologisch-dynamisch) auf die zeitliche Dynamik und die räumliche Verteilung von bodenchemischen und -mikrobiologischen Parametern der C- und N-Dynamik sowie auf das Pflanzen- und Wurzelwachstum von Winterroggen. (Influence of different fertilization types “mineral, organic, biodynamic” on temporal dynamics and spatial distribution of soil chemical and microbiological parameters of C- and Ndynamics and on plant and root growth of winter rye.) PhD thesis, Univ. Giessen. Schriftenreihe Band 7, Institut für biologisch-dynamische Forschung, Darmstadt, Germany.Google Scholar
5.Balzer-Graf, U.R., and Balzer, F.M.. 1988. Steigbild und Kupferchloridkristallisation: Spiegel der Vitalaktivität von Lebensmitteln. (Steep track picture method and copper chloride crystallization: a mirror of the vital activity of food.) In Meier-Ploeger, A., and Vogtmann, H. (eds.). Lebensmittelqualität: ganzheitliche Methoden und Konzepte. (Food Quality: Holistic Methods and Concepts.) C.F. Müller, Karlsruhe, Germany, pp. 163–210.Google Scholar
6.Balzer-Graf, U.R., and Balzer, F.M.. 1991. Milchqualität im Spiegel bildschaffender Methoden. (Milk quality reflected by picture-creating methods.) Lebendige Erde, Heft 5, 236–255.Google Scholar
7.Brouwer, W. 1976. Handbuch des speziellen Pflanzenbaues. Band II. (Manual of Crop Production. Vol. II.) Verlag P. Parey, Berlin and Hamburg, Germany.Google Scholar
8.Gransted, A., and Kjellenberg, L.. 1997. Long-term field experiment in Sweden: Effects of organic and inorganic fertilizers on soil fertility and crop quality. In Lockeretz, W. (ed). Agricultural Production and Nutrition. Proceedings of an International Conference. School of Nutrition Science and Policy, Tufts Univ., Medford, Massachusetts, pp. 79–90.Google Scholar
9.Hermanns-Sellen, M. 1989. Chemisch-physiologische Kennwerte und Lagerverhalten von organisch und mineralisch gedüngter Rote Bete eines Feldversuches. (Chemical and physiological parameters and storage ability of organically and minerally fertilized red beet from a field trial.) PhD thesis, Univ. Giessen, Germany.Google Scholar
10.Kerpen, J. 1988. Untersuchungen zum Vergleich von Möhren (Daucus carota L.) aus ökologischem und konventionellem Landbau. (Comparison of carrots from organic and conventional farming.) PhD thesis, Techn. Univ. Berlin, Germany.Google Scholar
11.Knijpenga, H. 1995. Veränderungen der Lebensmittelqualität bei der Konservierung durch Gammastrahlen. (Changes of food quality by preservation with gamma rays.) Okologie & Landbau, Heft 2, 17–19.Google Scholar
12.Leitzmann, C., and Sichert-Oevermann, W.. 1988. Lebensmittelqualität und Lebensmittelwahl nach Wertstufen. (Food quality and food choice according to levels of value.) In Meier-Ploeger, A. and Vogtmann, H. (eds). Lebensmittelqualität: ganzheitliche Methoden und Konzepte. (Food Quality: Holistic Methods and Concepts.) C.F. Müller, Karlsruhe, Germany, pp. 45–66.Google Scholar
13.Meier-Ploeger, A., 1995. Das lebende Ganze ist mehr als die Summe seiner Teile. (The living whole is more than the sum of its parts.) Okologie & Landbau, Heft 94, pp. 6–11.Google Scholar
14.Meier-Ploeger, A., and Vogtmann, H. (eds), 1988. Lebensmittelqualität: ganzheitliche Methoden und Konzepte. (Food Quality: Holistic Methods and Concepts.) C.F. Müller, Karlsruhe, Germany.Google Scholar
15.Pettersson, B.D. 1970. Verkanav växtplats, gödsling och tillväxtreglerande substanser på matpotatisens kvalitetsegenskaper. (Effect of site, fertilization and growth regulating substances on quality parameters of potatoes.) Nordisk forskningsring Meddelande nr 23.Google Scholar
16.Pettersson, B.D. 1982. Konventionell und biologisch-dynamisch erzeugte pflanzliche Nahrungsstoffe im Vergleich. (Comparison of conventionally and biodynamically produced vegetable foods.) Angewandte Wissenschaft, Heft 263, pp. 218–228.Google Scholar
17.Pettersson, B.D., and Engqvist, M., 1964. Die Auswirkungen der Düngung auf die Qualitätseigenschaften von Kartoffeln. (Fertilization effects on quality parameters of potatoes.) Lebendige Erde, Heft 5, pp. 199–219.Google Scholar
18.Raupp, J. 1995. The long-term trial in Darmstadt: Mineral fertilizer, composted manure and composted manure plus all biodynamic preparations. In J. Raupp (ed). Main Effects of Various Organic and Mineral Fertilization on Soil Organic Matter Turnover and Plant Growth. Proc. 1st Meeting Concerted Action Fertilization Systems in Organic Farming (AIR3-CT94-1940), Darmstadt, 05 1995. pp. 28–36.Google Scholar
19.Raupp, J. 1997. Yield, product quality and soil life after long-term organic or mineral fertilization. In Lockeretz, W. (ed). Agricultural Production and Nutrition. Proceedings of an International Conference. School of Nutrition Science and Policy, Tufts Univ., Medford, Massachusetts, pp. 91–101.Google Scholar
20.Sabiwalsky, B. 1995. Untersuchung ausgewählter Parameter zur Beschreibung des Nachernteverhaltens von Kartoffelknollen: Abhängigkeit von unterschiedlicher Düngungsart und - intensität sowie der Behandlung mit biologisch-dynamischen Präparaten. (Investigation of selected parameters to describe post harvest behaviour of potato tubers depending upon different types and intensities of fertilization and application of biodynamic preparations.) Diplomarbeit, Institut für Organischen Landbau, Univ. Bonn, Germany.Google Scholar
21.Samaras, I. 1978. Nachernteverhalten unterschiedlich gedüngter Gemüsearten mit besonderer Berücksichtigung physiologischer und mikrobiologischer Parameter. (Post-harvest behaviour of vegetable crops with varying fertilization, with special consideration of physiological and microbiological parameters.) PhD thesis, Univ. Giessen. Publications Lebendige Erde, Darmstadt, Germany.Google Scholar
22.Samaras, F. 1981. Die epiphytische Mikroflora in Beziehung zu einigen biochemischen Merkmalen und zu einigen Kriteriender Verderbnisanfälligkeit ausgewählter Nahrungspflanzen, insbesondere Getreide. (The epiphytic microflora in relation to some biochemical characteristics and to some criteria of spoilage susceptibility investigated with selected food crops, mainly cereals.) PhD thesis, Univ. Giessen. Publications Lebendige Erde, Darmstadt, Germany.Google Scholar
23.Schulz, D.G., and Kopke, U.. 1995. Effects of intensified mineral and organic fertilizer and biodynamic preparations on yield, quality and shelf life of potatoes. In J. Raupp (ed). Main Effects of Various Organic and Mineral Fertilization on Soil Organic Matter Turnover and Plant Growth. Proc. 1st Meeting Concerted Action Fertilization Systems in Organic Farming (AIR3-CT94-1940), 05 1995, Darmstadt, Germany, pp. 42–47.Google Scholar
24.Spiess, H. 1978. Konventionelle und biologisch-dynamische Verfahren zur Steigerung der Bodenfruchtbarkeit. (Conventional and biodynamic methods to increase soil fertility.) PhD thesis, Univ. Giessen. Publications Lebendige Erde, Darmstadt, Germany.Google Scholar
25.Wirthgen, B. 1987. Zum Konsumverhalten der Käufer alternativ erzeugter Nahrungsmittel in Nordhessen. (Consumption behavior of buyers of organically produced food in North Hessia.) In Report on a Workshop Held at Stuttgart-Hohenheim, 10 1–3, 1986. AID, Bonn, Germany, pp. 20–27.Google Scholar
26.Wistinghausen, E. v. 1979. Was ist Qualität? Wie entsteht sie und wie ist sie nachzuweisen? (What is quality? How does it arise and how can it be proved?) Verlag Lebendige Erde, Darmstadt, Germany.Google Scholar
27.Wistinghausen, E. v. 1984. Düngung und biologisch-dynamische Präparate. (Fertilization and biodynamic preparations.) Verlag Lebendige Erde, Darmstadt, Germany.Google Scholar