000			03265nam a2200289 a 4500
003			OSt
005			20240312105047.0
008			070605s19uu xx 00 eng d
040			_cCvSU Main Campus Library
041	0		_aeng
082	0	4	_a634.44 _bK96 1985
100		0	_aKunsongkeit, Nipa _eauthor _943233
245	1	0	_aEffect of storage atmospheres and exposure periods on the incidence of internal breakdown and physiochemical changes of 'Carabao' mango (Mangifera indica L.) fruits / _cby Nipa Kunsongkeit
260	0		_aLos Baños, Laguna : _c1985. _bCavite State University- Main Campus,
300			_a195 pages : _billustrations ; _c28 cm.
336			_2rdacontent _atext
337			_2rdamedia _aunmediated
338			_2rdacarrier _avolume
500			_aThesis (Ph.D. - Horticulture) University of the Philippines, College, Laguna.
504			_aIncludes bibliographical references.
520	3		_aNIPA KUNSONGKEIT, University of the Philippines at Los Banos, August 1985. Effect of Storage Atmospheres and Exposure Periods on the Incidence of Internal Breakdown and Physicochemical Changes of 'Carabao Mango (Mangifera indica L.) Fruits. Major Professor: Dr, Doroteo B, Mendoza, Jr. ‘Carabao' mango fruits stored under low oxygen atmospheres (2.7% to 7.7%) for 7 days or high CO combined with low O2 (18,5% CO2 4 2.5% Oy) for 4 to 7 days at ambient temperatures (26-32°C) exhibited internal breakdown. Fruits stored in 18.5% GO, 42.5% O, had more areas affected and with the severe type of disorder, High CO? with abundant Op (18.5% CO, / 20% Op) failed to initiate this disorder. Low O72 was associated with the occurrence of internal breakdown which was aggravated by high GO» and prolonged expoSure period. Anaerobic respiration appears to be the predominant process in the disposition of disorder as indicated by low oxygen uptake and high respiratory quotient during storage, This was further substantiated by the presence of fermented odor after ripening: Low oxygen (2.7% to 7.7%) atmosphere maintained respiration and ethylene production of stored fruits at low rates during storage, There were indications among fruits at these levels of O7 for failure to show the typical climacteric respiratory behaviour during and after storage for 4 and 7 days. Low ethylene production was also observed during storage at low oxygen. However, the rate and pattern was not consistent particularly upon transfer to air. . Anaerobic respiration which occurred during storage in those atmospheres further brought about low internal ethylene concentration, accumulation of organic acids, high pH, failure of starch hydrolysis and slower carotenogenesis. These abnormal chemical changes might have elicited the following features of internal breakdown: delineated starchy areas with or without air pockets formation, low sugar content, pale yellow pulp color and presence of fermented odor,
541			_cSubmitted to the University Library _d01/07/1994 _eT-1472
650		0	_aMango _97242
690			_91418 _aDoctor of Philosophy _xHorticulture
856			_p80 _yClick here to view thesis abstract and table of contents _uhttp://library.cvsu.edu.ph/cgi-bin/koha/opac-retrieve-file.pl?id=7260d0dbe82cf52c26051ea473579465
942			_2ddc _cMAN
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