Title page, summary and table of contents only. The complete thesis in print form is available from the University of Adelaide Library. / "This study examined how the efficacy of 1-MCP varies throughout the year; the effect of concentration, duration and timing of ethylene application; the effect of hand position on the bunch; the timing of 1-MCP application in relation to ripening and harvest time; and the effect of ripening storage temperatures and chilling storage .. The findings of this study allow 1-MCP to be used in a more commercially reliable manner" -- from Abstract. / http://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1256621 / Thesis (Ph.D.) -- University of Adelaide, School of Agriculture, Food and Wine, 2006

Title page, summary and table of contents only. The complete thesis in print form is available from the University of Adelaide Library. / "This study examined how the efficacy of 1-MCP varies throughout the year; the effect of concentration, duration and timing of ethylene application; the effect of hand position on the bunch; the timing of 1-MCP application in relation to ripening and harvest time; and the effect of ripening storage temperatures and chilling storage .. The findings of this study allow 1-MCP to be used in a more commercially reliable manner" -- from Abstract. / http://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1256621 / Thesis (Ph.D.) -- University of Adelaide, School of Agriculture, Food and Wine, 2006

Diss. (sammanfattning) Alnarp : Sveriges lantbruksuniversitet, 2004. / Härtill 9 uppsatser.

Diss. (sammanfattning) Göteborg : Göteborgs universitet, 2009. / Härtill 4 uppsatser.

Thesis (MScAgric)--Stellenbosch University, 2002. / ENGLISH ABSTRACT: Internal breakdown (internal browning - IB and gel breakdown - GB), over maturity and immaturity are the main factors adversely affecting the quality of exported South African plums. Maturity problems occur when plums are strip harvested, i.e., all the fruit in a block or orchard are harvested once, when the majority of the fruit are at optimum maturity. This results in both ovennature and immature fruit being harvested and contributes to a high percentage of fruit being rejected for export. In general, internal browning occurs when plums are exported under a single 10\,,, temperature regime and gel breakdown occurs when plums are exported under a dual temperature regime. However, GB can also occur at harvest in fruit that are very ripe and may occur at single low temperatures, where it would be masked by lB. While it is known that some cultivars, like 'Angeleno', can withstand a single temperature regime, others cannot. To the best of our knowledge, the reason for this difference is not understood. Many factors affect the quality of plums, including light incidence in the canopy, mineral nutrition and harvest maturity. Plums that were grown on high density training systems such as 'a V- or spindle system yielded consistently high quality fruit with low incidences of gel breakdown. This was in contrast to earlier findings where low-density training systems produced high levels of GB, especially in the lower part of the tree canopy. Branches that were shaded with 80% shade netting yielded fruit with high levels of GB, indicating that the main effect of improved canopy structure on quality was improved light management. A postharvest boron application on 'Songold' plums prior to storage had no effect on the incidence of intemal breakdown in the fruit, but did damage the cuticle, resulting in severe shrivel. However, internal conductivity and firmness measurements indicated that there was some effect of the boron on cell membranes. A more thorough investigation of pre- and postharvest application of boron is recommended in order to determine whether there could be a positive effect of boron in improving fruit quality in plums. Four cultivars of plums ('Pioneer', 'Sapphire', "Songold ' and 'Angeleno') were harvested throughout, and extending beyond, the commercial harvesting period. In all cultivars, the drop in firmness between harvests was not as great as expected and the later harvested fruit were of a similar, if not superior, quality as compared to the earlier harvested fruit. Later harvested plums tended to have higher TSS and better colour development. Contrary to what was expected, later harvested fruit did not have more internal disorders than earlier harvested fruit. This indicates the importance of harvesting at optimum maturity. 'Angeleno' plums had no internal disorders, even after five weeks of cold storage at a single low temperature. 'Pioneer' and 'Sapphire' plums were classified as climacteric and 'Songold' and 'Angeleno' were classified as suppressed climacteric based on ethylene production. The climacteric plums respired and produced ethylene at a higher rate than the suppressed climacteric plums. Climacteric plums ripened faster during shelf life than suppressed climacteric plums. Furthermore, while climacteric plums did not need a cold storage period prior to ripening, suppressed climacteric plums needed a cold storage period in order to ripen normally. The longer the cold storage period prior to transfer to higher temperatures, the faster the plums ripened and the higher the ethylene production at the higher temperature. The suppressed climacteric genotype could possibly be incorporated into plum breeding programs in order to extend the storage period and shelflife of new plum cultivars. The long storage times required to ship plums from South Africa to the export markets has necessitated research on postharvest physiology and quality of this fruit. The use of the climacteric and suppressed climacteric system to classify fruit is expected to assist in understanding the different physiological responses of the cultivars and assist in developing handling protocols. Preharvest factors, particularly light and nutrition, also playa role in postharvest quality. / AFRIKAANSE OPSOMMING: Interne verval (interne verbruining en gelverval), oorrypheid en onryp vrugte, is die hoof faktore wat die uitvoer van Suid Afrikaanse pruime negatief beïnvloed. Rypheidsprobleme ontstaan wanneer pruime gestroop-oes word, met ander woorde, al die vrugte in 'n blok of boord word geoes wanneer die meerderheid vrugte optimum rypheid bereik het. As gevolg hiervan word 'n groot persentasie vrugte vir uitvoer afgekeur, omdat hulle te ryp of nie ryp genoeg is nie. Oor die algemeen vind interne verbruining plaas wanneer vrugte onder 'n enkel lae temperatuur uitgevoer word en gelvervel vind plaas wanneer vrugte onder 'n dubbele temperatuur regime vervoer word. Gel verval kan egter in baie ryp vrugte by oes voorkom en mag by enkel lae temperature voorkom .waar dit deur interne verbruining gemaskeer sal word. Kultivars soos 'Angeleno' kan onder enkel lae temperatuur uitgevoer word sonder interne probleme, terwyl ander pruimkultivars me so uitgevoer kan word nie. So ver ons weet, word die rede hiervoor nie goed verstaan nie. Daar is baie faktore wat die kwaliteit van pruime beïnvloed, onder meer lighuishouding, minerale voeding en die rypheid waarby die pruime geoes word. Pruime wat in hoë-digtheid sisteme soos 'n V- of "spindle" groei het goeie kwaliteit vrugte met 'n lae persentasie gelverval gelewer. Dit is in teenstelling met vroeër bevindinge, waar vrugte van lae digtheid boorde hoë persentasies geverval gelewer het, veral in die onderste gedeeltes van die boom. Takke wat met 80% skadunet bedek is het hoër persentasies gelverval as die kontrole gelewer, wat aandui dat die hoof effek van die verbeterde boom struktuur op kwaliteit, verbeterde lighuishouding was. 'n Na-oes aanwending van boor op 'Songold' pruime het geen effek op die voorkoms van gelverval gehad nie, maar het die kutikula beskadig en tot hoë persentasies verrimpeling gelei. Fermheid en inteme weerstand lesings het egter getoon dat daar wel 'n effek van die boor op die selmembrane en selwande was. 'n Meer omvattende ondersoek van voor- en na-oes aanwending van boor word aanbeveel om vas te stelof daar wel 'n positiewe effek van boor in die verbetering van pruim kwaliteit is. Vier pruim kultivars, ('Pioneer', 'Sapphire', 'Songold' en 'Angeleno'), is gedurende, sowel as later as die kommersiële oesperiode geoes. In al die kultivars was die afname in fermheid kleiner as wat verwag is, en vrugte wat later geoes is het dieselfde, en soms beter, kwaliteit as die vrugte wat vroeër geoes is gehad. Pruime wat later geoes is het beter kleur en gewoonlik hoër suikers gehad. In teenstelling met wat verwag is, het pruime wat later geoes is nie meer interne verval gehad as die pruime wat vroeër geoes is nie. Dit dui die belangrikheid van optimale oesrypheid aan. 'Angeleno' het geen interne verval gehad nie, selfs na vyfweke opberging by -0.5°C. 'Pioneer' en 'Sapphire' pruirne is as klimakteries en 'Songold' en 'Angeleno' as onderdrukte klimakteries geklassifiseer, gebaseer op etileen produksie. Die klimakteriese pruime het teen 'n hoër tempo gerespireer en etileen geproduseer as die onderdrukte klimakteriese pruime. Gedurende raklewe het klimakteriese vrugte vinniger as onderdrukte klimakteriese vrugte ryp geword. Verder, terwyl klimakteriese pruime nie opbgerging by 'n lae temperatuur nodig gehad het nie, het onderdrukte klimakteriese vrugte welopberging by 'n lae temperatuur nodig gehad om normaal ryp te word. Hoe langer die koel opbergingsperiode was, hoe vinniger het die pruime ryp geword by raklewe en hoe hoër was hulle etileen produksie. Die onderdrukte klimakteriese genotipe kan moontlik in teelprogramme geïnkorporeer word om kultivars met verlengde opbergings- en raklewe te teel. Die lang vervoer tye wat benodig word om Suid Afrikaanse pruime by die uitvoer markte te kry het dit nodig gemaak om navorsing oor die na-oes fisiologie en kwaliteit van pruime te doen. Die klassifisering van pruime as klimakteries of onderdrukte klimakteries kan ons in staat stelom die verskillende fisiologiese reaksies van die kultivars te verstaan en om hanterings prosedures te ontwikkel. Voor-oes faktore, veral lighuishouding en mineraalvoecling speelook 'n rol in na-oes kwaliteit van pruime.

OLIVEIRA, Geórgia Mesquita de. Prospecção de proteínas envolvidas no amadurecimento pós-colheita da graviola (Annona muricata L.), 2011. 83 f. : Dissertação (Mestrado) - Universidade Federal do Ceará, Centro de Ciências, Departamento de Bioquímica e Biologia Molecular, Programa de Pós-Graduação em Bioquímica, Fortaleza-CE, 2011. / Submitted by Eric Santiago (erichhcl@gmail.com) on 2016-05-20T12:45:41Z No. of bitstreams: 1 2011_dis_gmoliveira.pdf: 22870177 bytes, checksum: 523d913e6270072f06047beb7e1591f1 (MD5) / Approved for entry into archive by Nádja Goes (nmoraissoares@gmail.com) on 2016-05-20T13:10:48Z (GMT) No. of bitstreams: 1 2011_dis_gmoliveira.pdf: 22870177 bytes, checksum: 523d913e6270072f06047beb7e1591f1 (MD5) / Made available in DSpace on 2016-05-20T13:10:48Z (GMT). No. of bitstreams: 1 2011_dis_gmoliveira.pdf: 22870177 bytes, checksum: 523d913e6270072f06047beb7e1591f1 (MD5) Previous issue date: 2011 / The soursop (Annona muricata L.) fruit is widely used in food, because it provides vitamins, carbohydrates, proteins, lipids and other molecules for human nutrition. In recent years, soursop (exotic tropical fruit) has had a prominent position in the Brazilian economy, especially for northeastern states such as, Ceara, Alagoas, Bahia and Pernambuco. The high production of soursop fruit is mainly in the Northeast by flowering occurs throughout the year, however it is estimated that the post-harvest losses reach 50% of production, as with other native or exotic fruits. Such post-harvest losses of the product are due to the accelerated rate of development and senescence of the fruit. Although some studies on Graviola, biochemical and molecular understanding of the maturation process is very limited making it important to move forward on this knowledge to develop strategies for increasing the shelf life of fruit. In this study, we sought a better protocol for protein extraction from soursop pulp to generate two-dimensional maps and identification of potential proteins involved in post-harvest ripening of the fruit. The soursop fruit in pre-climacteric stage were collected and allowed to ripen at 25 ° C for up to 8 days. Samples of the fruit pulp were collected at 0, 2, 4, 6 and 8 days post-harvest and used for protein extraction and establishment of two-dimensional gels (2D). Two different protein extraction methods were tested and the best one concerning performance and spots with good resolution in two-dimensional gel was chosen for protein analysis. The two-dimensional gels were analyzed using the Image Master for the identification of specific or differential spots, as well as determination of their isoelectric points (IPs) and their molecular masses (MM). The pI and MM data were used to track homologous proteins in angiosperms through searches on databases UniProtKB / Swiss-Prot and UniProtKB / Tremble featuring more than 16 million deposited information. 2D gels initially produced in the pH range 3 to 10 revealed the protein concentrated in the more acidic pHs. This fact determined the pH range 4-7 was used for better separation of spots in the following analysis. After two-dimensional gel analysis of 21 specific spots and 6 differential spots were selected. The analysis in databases allowed inferences about 26 proteins. Among these proteins, several were related to fruit ripening in other species such as proteins with expression regulated by ethylene, protein related to the establishment of the organoleptic characteristics of the fruit and proteins of energy metabolism. With respect to the metabolism of proteins glycolytic pathway, Krebs cycle and ETC were inferred. Previous studies on the participation of the alternative pathway of electrons in the ripening of climacteric graviola have been strengthened. However, this study also showed that in addition to the alternative oxidase (AOX), other components may participate in the regulation of this pathway. The results reveal possible protein targets for the development of strategies and biochemical and molecular control of postharvest ripening of soursop. / A graviola (Annona muricata L.) é uma fruta bastante utilizada na alimentação, pois fornece vitaminas, carboidratos, proteínas, lipídios, fibras e outras moléculas para nutrição humana. Nos últimos anos a graviola (fruto tropical exótico) tem apresentado uma posição de destaque na economia brasileira, principalmente para Estados do Nordeste como Ceará, Alagoas, Bahia e Pernambuco. A alta produção do fruto de graviola no Nordeste se dá principalmente pela floração ocorrer durante o ano todo, contudo estima-se que a perda pós-colheita chega a 50% da produção, como ocorre com outros frutos nativos ou exóticos. Tal perda pós-colheita do produto se deve à acelerada taxa de desenvolvimento e senescência do fruto. Apesar de haver alguns estudos sobre graviola, o entendimento bioquímico e molecular do processo de amadurecimento é muito limitado tornando-se importante avançar nesses conhecimentos a fim de desenvolver estratégias para o aumento da vida de prateleira desse fruto. No presente trabalho, buscou-se por um melhor protocolo de extração de proteínas da polpa de graviola para gerar mapas bidimensionais e identificação de possíveis proteínas envolvidas no amadurecimento pós-colheita do fruto. Os frutos de graviola no estádio pré-climatérico foram colhidos e deixados amadurecer a temperatura de 25° C por até 8 dias. Amostras da polpa do fruto foram coletadas nos tempos 0, 2, 4, 6 e 8 dias pós-colheita e usadas para a extração de proteínas e estabelecimento de géis bidimensionais (2D). Dois diferentes métodos de extração de proteínas foram testados e o que apresentou melhor rendimento e spots com boa resolução em géis bidimensionais foi escolhido para análise de proteínas. Os géis bidimensionais foram analisados através do programa Image Master para a identificação de spots específicos e ou diferenciais, bem como determinação de seus pontos isoelétricos (pIs) e de respectivas massas moleculares (MM). Os dados de pI e MM foram usados para rastrear proteínas homólogas em angiospermas através de buscas nos bancos de dados UniProtKB/Swiss-Prot e UniProtKB/TrEMBL dispondo de mais de 16 milhões de informações depositadas. Géis 2D inicialmente produzidos na faixa de pH de 3 a 10 revelaram proteínas concentradas na região de pHs mais ácidos. Tal fato determinou que a faixa de pH de 4 a 7 fosse usada para melhor separação dos spots em análises seguintes. Após análise dos géis bidimensionais 21 spots específicos e 6 spots diferenciais foram selecionados. As análises em bancos de dados possibilitaram inferir sobre 26 proteínas. Entre essas proteínas, várias estavam relacionadas com o amadurecimento de frutos em outras espécies tais como: proteínas com expressão regulada pelo etileno, proteínas relacionadas com o estabelecimento das características organolépticas do fruto e proteínas do metabolismo energético. Com relação ao metabolismo enegético proteínas da via glicolítica, ciclo de Krebs e CTE foram inferidas. Estudos prévios sobre a participação da via alternativa de elétrons no amadurecimento climatérico da graviola foram reforçados. Entretanto, nesse trabalho foi observado que além da oxidase alternativa (AOX), outros componentes podem participar da regulação dessa via. Os resultados obtidos revelam possíveis proteínas alvo para o desenvolvimento de estratégias bioquímicas e ou moleculares no controle do amadurecimento pós-colheita da graviola.

This thesis focused on the factors influencing the ripening of cheese , especially the first phase. The literature review was prepared during maturation of cheese , which is a comprehensive summary of the changes caused syřidlovými enzymes and enzymatic activity of cultures in which the cheese gets the typical appearance, texture, flavor and composition

Made available in DSpace on 2018-07-27T18:26:19Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-09-23. Added 1 bitstream(s) on 2018-07-27T18:30:45Z : No. of bitstreams: 1 000881026.pdf: 908907 bytes, checksum: 66790b22344a55806b8fc59bdbee24d9 (MD5) / Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPQ) / Os diversos cultivares de cana-de-açúcar criados a partir de melhoramentos genéticos apresentam diferentes aspectos agroindustriais, gerando além de diferentes remunerações, produtos com qualidades diferenciadas na unidade industrial. Desta maneira, o presente trabalho foi conduzido com o objetivo de comparar cultivares de cana-de-açúcar quanto às suas variáveis tecnológicas, atividades enzimáticas e teores de fosfatos. As amostragens dos colmos de cana foram coletadas nas parcelas experimentais instaladas na Fazenda de Ensino Pesquisa e Extensão da FCAV/UNESP- Jaboticabal, SP. As análises foram realizadas no Laboratório de Tecnologia do Açúcar e Etanol do departamento de Tecnologia. Os cultivares apresentaram diferença em relação aos teores enzimáticos, níveis de fosfatos inorgânicos e características tecnológicas. O cultivar RB867515 obteve os resultados mais satisfatórios do estudo, excetuando-se pela atividade enzimática, onde o cultivar SP81-3250 destacou-se. Todos os genótipos apresentaram teores adequados de fósforo inorgânico para um eficiente processo de clarificação / The different cultivars of sugarcane created from genetic improvements have different agroaspects, generating besides different remuneration, products with differentiated qualities in the industrial unit. Thus, this study was conducted in order to compare cultivars of sugarcane as will their technological variables, enzimatic activity and phosphate levels. Sampling of cane stems occurred in Farm Research Education and Extension FCAV / UNESP- Jaboticabal, SP. Analyses were performed in the Sugar and Ethanol Technology Laboratory in technology department of the same university. The cultivars showed differentiation from enzyme levels, inorganic phosphate levels and technological characteristics. The cultivar RB867515 obtained the most satisfactory results of the study, except it is the enzymatic activity, where the SP81-3250 stood out. All genotypes showed inorganic phosphorus levels appropriate for efficient clarification process

Resumo: O projeto de pesquisa teve por objetivo avaliar as alterações fisiológicas na cana-de-açúcar decorrente da aplicação de maturadores químicos com diferentes mecanismos de ação e os reflexos na produtividade e qualidade tecnológica. Dessa forma foram instalados e conduzidos dois experimentos em cana soca nas Fazendas São Joaquim e Bosque, situadas no município de Igaraçú do Tietê, Estado de São Paulo, pertencentes ao Grupo COSAN - Unidade Barra (Usina da Barra). O delineamento experimental utilizado foi o em blocos casualizados com cinco repetições. No experimento 1 (Fazenda São Joaquim) utilizou-se a variedade de cana-de-açúcar RB855453 e no Experimento 2 (Fazenda Bosque) a variedade SP80-3280. Os tratamentos consistiram na aplicação de sete maturadores químicos (KNO3 (p.c. Krista Kana), Etil-trinexapac (p.c. Moddus), Sulfometuron metil (p.c. Curavial), Etefon (p.c. Ethrel), KNO3 + boro (p.c. Krista Kana Plus), Glifosato (p.c. Roundup) e Compostos de radicais carboxílicos orgânicos + Glifosato (p.c. MTD + Roundup)) e uma testemunha, maturação natural. As doses empregadas foram, respectivamente: 3 kg p.c. ha-1, 0,8 L p.c. ha-1, 20 g p.c. ha-1, 2 L p.c. ha-1, 3,0 kg p.c. ha-1, 0,4 L p.c. ha-1 e 1,0 L p.c. ha-1 + 0,15 L p.c. ha-1. A aplicação dos maturadores ocorreu nos meses de março (Experimento 1) e maio (Experimento 2) de 2004, utilizando-se equipamento costal pressurizado (CO2). As parcelas foram constituídas de 8 linhas de 10m de comprimento com espaçamento de 1,5m. Foram avaliados os seguintes parâmetros bioquímicos, biométricos e tecnológicos: atividade das enzimas invertases ácida solúvel e neutra em caldo de cana; altura de plantas, diâmetro dos colmos, número de colmos, rebrota, florescimento, chochamento, brotação lateral, produtividade de colmos e açúcar; pH, acidez, pol, pureza... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The purpose of research was to evaluate physiological alterations in sugarcane due to the application of chemical compounds with different actions and its reflects in the productivity and technological quality. Two experiments were carried out in ratoon cane in São Joaquim Farm and Bosque Farm, in Igaraçú do Tietê, São Paulo State, Brazil, belonging to Grupo COSAN - Unidade Barra (Usina da Barra). The experimental design used was random blocks with five repetitions. In experiment one (São Joaquim Farm) sigarcane RB855453 was used, and in experiment two (Bosque Farm) sugarcane SP80-3280. The treatments consisted of seven chemical compounds (potassium nitrate (trademark Krista Kana), Ethyl-trinexapac (trademark Moddus), Sulfometuron methil (trademark Curavial), Ethephon (trademark Ethrel), potassium nitrate + boron (trademark Krista Kana Plus), Glyphosate (trademark Roundup) and compounds of organic carboxilic radicals + Glyphosate (trademark MTD + Roundup)), and one control. The doses were, respectively: 3.0 kg ha-1 Potassium nitrate, 0.8 L ha-1 Ethyl-trinexapac, 20 g ha-1 Sulfometuron methil, 2.0 L ha-1 Ethephon, 3.0 kg ha-1 KNO3 + Boro, 0.4 L ha-1 Glyphosate, 1.0 L ha-1 Comp. carboxílicos + 0.15 ha-1 Glyphosate. The applications of chemicals were performed in March (Experiment one) and in May (Experiment two) in 2004, with constant spraying pressure... (Complete abstract, click electronic address below) / Orientador: Carlos Alexandre Costa Crusciol / Coorientador: Marcelo de Almeida Silva / Banca: João Domingos Rodrigues / Banca: Raffaella Rossetto / Mestre

A banana tem grande importância econômica, é a fruta mais produzida no mundo, e o Brasil é o segundo maior produtor. É uma fruta altamente perecível, de rápida maturação, sensível a choques mecânicos, suscetível a descoloração, ao amolecimento excessivo e a patógenos na fase pós-colheita. As mudanças ocorridas durante o amadurecimento levam a uma vida de prateleira muito reduzida e são dependentes da expressão de diversas proteínas. Portanto, a identificação de proteínas associadas com essas modificações pode contribuir para a melhor compreensão da regulação do amadurecimento e auxiliar no aprimoramento das estratégias de conservação pós-colheita e melhoria da qualidade dessa fruta. Através da análise proteômica diferencial podem ser identificadas proteínas com variação de abundância durante o amadurecimento e que estejam envolvidas nesse processo. O presente trabalho teve por objetivo comparar os mapas protéicos de polpa de banana (Musa acuminata cv. nanicão) nas fases pré-climatérica e climatérica, e a identificar spots de proteínas que diferem em abundância nesses dois estádios, através da eletroforese bidimensional acoplada à espectrometria de massas. Neste trabalho foram utilizadas três amostragens distintas de frutas, de modo a minimizar o efeito da variabilidade biológica, não relacionada com o amadurecimento. Para a obtenção dos perfis protéicos foi utilizada a metodologia 2D-DIGE. Os géis obtidos foram analisados com o software PDQuest e para a análise estatística foi utilizado o teste T. Chegou-se a uma lista de 50 spots que foram recortados dos géis, sendo as proteínas digeridas e seqüenciadas por espectrometria de massas. Destas proteínas, 26 tiveram a provável identidade apontada pela comparação com o banco de dados MSDB, empregando o software Mascot. A maioria das proteínas identificadas apresenta provável função durante o amadurecimento da banana e podem estar relacionadas com processos bioquímicos relacionados com a qualidade da fruta. / Banana has great economic importance, is the most widely produced fruit in the world, and Brazil is the second largest producer. It is a highly perishable fruit, ripening fast, sensitive to mechanical shock, susceptible to discoloration, excessive softening and pathogens in the post-harvest. The changes during ripening leads to a very limited shelf life and are dependent on the expression of several proteins. Therefore, the identification of proteins associated with these modifications may contribute to better understanding the regulation of maturation and help to improve strategies for post-harvest preservation and improvement of this fruit. Through differential proteomics analysis could be identified proteins with a range of abundance during ripening and that could be involved in this process. This study aimed to compare the protein maps of banana pulp (Musa acuminata cv. nanicão) in pre-climacteric and climacteric phases, and identify protein spots that differ in abundance in these two stages by two-dimensional electrophoresis coupled to mass spectrometry. In this study we used three different fruits samples, to minimize the effect of biological variability, non-ripening related. To obtain the protein profiles was used 2D-DIGE methodology. The gels were analyzed with the PDQuest software and Student´s t-Test was used to statistical analysis. A list of 50 spots differential acumulated were detected and then were extracted of gels, protein digested and sequenced by mass spectrometry. Of these proteins, 26 had the probable identity indicated by comparison with the MSDB database, using Mascot software. Most of the identified proteins has probable function during banana ripening and may be related to biochemical processes related to fruit quality.