'Rocha' anel 'Packham's Ttiumph ' pears were harvested in January 2011 when the fruit in, the orchard reached flesh Iirmncss values of 67.6 anel 74.7 N, respectivelyResumo S11-3

ANTONIOLLI, L. R.

CZERMAINSKI, A. B. C.

SIQUEIRA, D. L.

ZUCOLOTO, M.

English

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Sll-JExtension of storagc and quality rnaíntenance of 'Rocha' and 'Packham's Triumph' Pcars using modificdatmosphere packaging (Bag-It-Freshy[\nioniülli, LR1, Zucoloto, ive, Czcrmainski, ARC.I, Siqueira, D.L2I ;.mhrapa Grapc and Wine. Braz ilian Agricultura! Research Corporation, ·P.O. Box 130,95700-000, Bento Gonçalves,RS. BrazilI 1)1h'l'lda,k; lcdcr.i' de Viçosa, Pcter Henry Rolfs Avenue, 36570-000, Viçosa, MG, BrazilE-mail: lucimara@cnpuvembrapa.br'Rocha' anel 'Packham's Ttiumph ' pears were harvested in January 2011 when the fruit in, the orchard reached fleshIirmncss values of 67.6 anel 74.7 N, respectively, Fruits were packeel in linear low density polyethylene (lOO 11m, Bag-it-Fresh, RLF. 1500, Magna Chemical Canadá Inc.). Packeel anel non-packed fruits were stored for 180 elays in coldroorn at O ± J °C anel 90 ± 5% RH. Pears were evaluated on f1esh firmness, soluble solids, weight loss anel epidermiscolar after 30, 60, 90, 120, 150 and )80 elays of cold storage and after five days at room temperature (20 ± 1°C).'\cTcplabilil\ sensorial test \\as performed tive days after removing fruit frorn lhe cold storage. Modified atmospherepackcu (:VIi\!') .Rocha' pears showed flesh firrnness values of 60,3 N after 180 days of cold storage while non-packedpear-. showed 46.9 N. At lhe same time, MAP 'Packhams' pears had firrnness values of61.0 N whereas the non-packed ones showed 37.8 N. MAP pears from both varieties kept by 180 days in a cold storage had lower soluble solidsthan non-packed fruits, Bag-it-Fresh reeluced weight loss by 7.4 times in 'Rocha' anel 10.5 times in 'Packham's' pearsafter J 80 days in colei storage. MAP 'Packham's' pears had an increase of3.1 % in weight 108s whcn fruit were-rcrnoved to roem tcmperature whereas non-packed pears had 2.8 %. Non-packed peal's from both.varieties had morenoticeable changes in Lheepiderrnis calor (from grecn to yellow), anel they were intensified after being removed toroom tcmperature. The greatesi acceptability values were attributed to MAP fruits aíterIóü days of colei storage. Non-packcd pears trorn both varieties became inappropriate for consumption tive days afterthe longer period ofcold storage( 1õ(1 days). tsag-u-t-resh extends the storagc of' Rocha' anel 'Packham's Triumph ' pears by a month, reduces<ub-rantiallv thc wcight loss and kccps the sensorial qualíty offruits for long pcrioels of cold storage.

Extension of storage and quality maintenance of 'Rocha' and 'Packham's Triumph' pears using modified atmosphere packaging (Bag-It-Fresh).

http://www.alice.cnptia.embrapa.br/bitstream/doc/949395/1/144722012P.77.pdf

Extension of storage and quality maintenance of 'Rocha' and 'Packham's Triumph' pears using modified atmosphere packaging (Bag-It-Fresh).

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