Quality control charts for storage of pears

Modified Shewart quality control charts were constructed for the storage of pears coated with different concentrations of sucrose polyesters. Weight loss, respiration rate, acidity, soluble solids, ascorbic acid and colour (Hunter a and b values) are the quality factors used for the construction of quality control charts. These charts will be helpful in maintaining the inevitable quality loss to within acceptable limits and in readjusting the storage conditions if the acceptable limits are exceeded.


Şümnü, Servet Gülüm; OZILGEN, M (1994-09-01)
Construction of modified Shewhart charts to monitor quality variations of apricots coated with edible sucrose polyesters in storage are described by using data based on changes in weight, soluble solids, pH, ascorbic acid, and Hunter colour scale. These control charts may be used to maintain the inevitable quality loss within acceptable limits, and make it possible to readjust the storage conditions if the acceptable limits should be violated.
Quality control charts for storage of raisins and dried figs
Ozilgen, M; Şümnü, Servet Gülüm; Emir, H; Emir, F (1997-01-01)
Shewhart control charts are constructed by using the Hunter Lab color scale parameters to assure maintenance of the color of raisins and dried figs during storage in modified atmosphere packages, vacuum packages, or nylon bags. These control charts may be used to maintain the quality within acceptable limits and make it possible to readjust storage conditions if the acceptable limits should be violated.
Thermal evolution of structure and photocatalytic activity in polymer microsphere templated TiO2 microbowls
Altunöz Erdoğan, Deniz; Polat, Meryem; Garifullin, Ruslan; Guler, Mustafa O.; Ozensoy, Emrah (Elsevier BV, 2014-07-30)
Polystyrene cross-linked divinyl benzene (PS-co-DVB) microspheres were used as an organic template in order to synthesize photocatalytic TiO2 microspheres and microbowls. Photocatalytic activity of the microbowl surfaces were demonstrated both in the gas phase via photocatalytic NO(g) oxidation by O-2(g) as well as in the liquid phase via Rhodamine B degradation. Thermal degradation mechanism of the polymer template and its direct influence on the TiO2 crystal structure, surface morphology, composition, spe...
Synthesis and characterization of multi-hollow opaque polymer pigments
Asmaoglu, Serdar; Gündüz, Güngör; MAVİŞ, BORA; Colak, Uner (Wiley, 2016-08-05)
A new generation multihollow opaque polymer pigment was synthesized by suspension polymerization of water-in-oil-in-water emulsion method, where methyl methacrylate and ethylene glycol dimethacrylate monomer mixture was used as oil phase. The effects of surfactant and cosurfactant composition in terms of hydrophilic/lipophilic balance on the stability of the water-in-oil emulsion and the size of water droplets were studied. Low droplet sizes and the optimum stability were obtained with Span 80&Tween 80 surf...
Biological hydrogen production from sugar beet molasses by agar immobilized R. capsulatus in a panel photobioreactor
ELKAHLOUT, Kamal; SAĞIR, EMRAH; ALIPOUR, Siamak; Koku, Harun; Gündüz, Ufuk; EROĞLU, İNCİ; Yücel, Ayşe Meral (2018-03-18)
Biohydrogen production from sugar beet molasses was investigated by using agar immobilized R. capsulatus YO3. A panel photobioreactor (1.4 L) was employed for a long-term hydrogen production in both indoor and outdoor conditions. The impact of several initial molasses concentrations on hydrogen production, yield and productivity were assessed. Indoor studies revealed that initial sucrose concentration in molasses should be kept below 20 mM to prevent inhibition of hydrogen production. The highest hydrogen p...
Citation Formats
S. G. Şümnü, “Quality control charts for storage of pears,” EUROPEAN FOOD RESEARCH AND TECHNOLOGY, pp. 355–359, 2000, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/36226.