Research regarding the setting up of the Processing Directions of Peach New Cultivars and Hybrids

Transcription

1 Roumanian Biotecnological Letters Vol. 13, No. 5, 2008, pp Copyrigt 2008 Bucarest University Printed in Romania. All rigts reserved Roumanian Society of Biological Sciences ORIGINAL PAPER Researc regarding te setting up of te Processing Directions of Peac New Cultivars and Hybrids Abstract Received for publication, August 15, 2008 Accepted, October 20, 2008 A. VOICU *, GH. CAMPEANU**, M. BIBICU***, A. MOHORA***, M. NEGOITA****, L. CATANA****, M. CATANA **** * Ministry of Agriculture and Rural Development, Bucarest, 24 Carol I, 3 Bucarest, Romania, e mail: voicuadriana@gmail.com **University of Agronomic Sciences and Veterinary Medicine, Bucarest, 59 Marasti, 1 Bucarest, Romania ***Researc Development Institute for Processing and Marketing of Horticultural Products HORTING Bucarest, 1A Intrarea Binelui Street, 4 Bucarest, Romania ****Institute of Food Bioresources Bucarest, 6 Dinu Vintila Street, 2 Bucarest, Romania Tere were studied nine peac cultivars and ybrids: Antonia, Amalia, Turtite 1, Turtite 2, Turtite 3, D 2 R 32 T 81, HB 7 16, HB 5 43, HB 7 35, during te period Some tecnological parameters tat contributed to te setting up of te processing directions were analyzed at tese cultivars and ybrids. Te new peac cultivars and ybrids were processed under similar tecnological conditions wit control cultivars Antonia and Amalia, according to te tecnologies used in te production for te preservation of fruit as nectar and compote. After te stabilization period of te preserved products, of minimum 21 days from processing, te following analyses were carried out: sensorial analyses, biocemical analyses wit determining of te energetic value and microbiologic analyses. Keywords: peac, cultivars, ybrids, quality, nectar, compote, processing Introduction Te peac is one of te most valuable and appreciated tree varieties cultivated in our country due to te ig nutritive value of te fruit. Peaces represent a particular significance bot for te consumption of fres fruit and also as raw material for processing [1]. Te researc carried out as proved two essential aspects for processing of te fruit: te quality of te raw material and te applied tecnology tat must keep or even improve te natural qualities of te fruit, in order to satisfy te consumer s taste [2]. Witin te practice of te new fruit varieties testing for omologation, besides te ceck up of te agricultural, biologic and tecnological qualities, te nutritional value and optimum qualities of processing into preservation product are very important [3]. Te fruit intended for industrial processing are considered of quality if, besides te sensorial properties, tey ave also a ig content of soluble dry substance, pectic substances and maintain teir colour and te flavour during teir processing into compotes, jellies, jams, juices etc. [4]. Testing te new fruit cultivars te nutritive, sensorial and te tecnological qualities are carried out. 3955

2 A. VOICU, GH. CAMPEANU, M. BIBICU, A. MOHORA, M. NEGOITA, L. CATANA, M. CATANA Materials and metods Te testing material for te processing was supplied by te Researc Development Station for Fruit Trees. Te experimentations were carried out at te Researc Development Institute for Processing and Marketing of Horticultural Products HORTING Bucarest witin te frame of te Laboratory of Researc Processing of Horticultural Products. Two control cultivars of peac: Antonia and Amalia and seven new cultivars and ybrids of peac: Turtite 1, Turtite 2, Turtite 3, D 2 R 32 T 81, HB 7 16, HB 5 43, HB 7 35 were analyzed for a period of tree years ( ). At tese peac cultivars and ybrids, a series of tecnological parameters (sensorial, pysical and biocemical), wic ave contributed to te setting up of te processing directions, were analyzed. Te new peac cultivars and ybrids were processed under similar tecnological conditions wit control cultivars Antonia and Amalia, according to te tecnologies used in te production for te processing of fruit as nectar and compote. Te tecnological flow seet for Peac nectar was included te following steps: qualitative and quantitative cecking, sorting, wasing, cleaning, cutting, preliminary eat treatment, cooling, crusing, refinement, mixing wit sugar syrup and acid citric, omogenization wit vitamin C, de aeration, filling bottles, ermetic sealing, pasteurization, cooling, labeling, storage [3, 5]. Te tecnological flow seet for Peac compote was included te following steps: qualitative and quantitative cecking, sorting, wasing, cleaning, cutting, filling jars, preparation sugar syrup wit citric acid, preeating, ermetic sealing, pasteurization, cooling, labeling, storage [3, 5]. In experimentations were also used: auxiliary materials (sugar, citric acid, vitamin C), packaging (Twist off jars 720ml, bottles 250ml), lab and industrial equipments, reagents and lab glass. Te control and assessment of te tecnological quality of te peac cultivars and ybrids were carried out in tree stages troug: analysis of te raw material; analysis of beaviour on te processing flow seet of nectar and compote; analysis of te preserved product. After te stabilization period of te preserved products obtained from processing of te peac cultivars and ybrids, of minimum 21 days from processing, te following analyses were carried out: sensorial analyses (aspect, colour, taste, flavour, consistence, texture) STAS [6]; biocemical analyses (soluble dry substance, glucides, lipids, proteins, vitamin C, acidity) determining te energetic value [6]; microbiological analyses: aerobic and anaerobic bacteria STAS , yeasts and moulds STAS [6]. Results and discussion Following te examination of te sensorial and pysical caracteristics of te new cultivars and ybrids of peac it was noticed tat: 3 new cultivars (Turtite 1 Băneasa, Turtite 2 Băneasa, Turtite 3 Băneasa) ave te fruit flat and te pulp wite, 3 new ybrids (D 2 R 32 T 81, 3956 Roum. Biotecnol. Lett., Vol. 13, No. 5, (2008)

3 Researc regarding te setting up of te Processing Directions of Peac New Cultivars and Hybrids HB 7 16, HB 5 43) ave w pulp, 2 control cultivars (Antonia, Amalia) and ybrid HB 7 35 ave wite pulp. Te cultivars wit flat fruit ave distinguised temselves by firm structure of te pulp, sweet or sweet soury balanced taste and intense flavour, as well as te control cultivar Amalia. Te oter new ybrids ave ad a more juicy pulp wit fine flavour, as te control cultivar Antonia. Te prevalent taste was sweet soury. Only te ybrid D 2 R 32 T 81 ad te sweet bitter taste. In table 1 te average values of te biocemical caracteristics analyzed at te peac cultivars and ybrids during are presented. Table 1. Average biocemical indicators of peac cultivars and ybrids ( ) Cultivar/ Soluble dry Total Total Vitamin C Ratio ybrid substance (%) (g malic acid/100g) glucides (%) (mg/100g) glucides/ acidity Antonia Amalia Turtite Turtite Turtite D 2 R 32 T HB HB HB Following tese analyses, te best average values of te biocemical caracteristics acieved during te period of te tree years study were registered at ybrid Turtite 1 Băneasa wit soluble dry substance of 15.2%, and an average value of total glucides content of 12.6%. Te igest content in vitamin C was registered at te control cultivar Amalia wit 11.08mg/100g, followed by te ybrid Turtite 1 Băneasa wit 10.69% and HB 5 43 wit mg/100g. Also, a ig content of glucides was registered by te control cultivar Amalia wit 11.62%, Turtite 3 Băneasa wit 11.33% and Turtite 2 Băneasa wit 11.32%. Total acidity of te peaces ranged from 0.48 to 0.88 g malic acid/100g. Higer average values presented te ybrid HB 7 16 wit 0.88 g malic acid/100g and te ybrid HB 7 35 wit 0.82 g malic acid/100g. Te ratio existent between te glucides content and acidity ranged between and Te taste of fruit is determined especially by tis ratio. Te ybrids: HB 7 16 and HB 7 35 ave presented te lowest value of te glucides/acidity ratio: and, respectively, 12.26, wile te ybrids Turtite 1 Băneasa and Turtite 2 Băneasa ave ad te igest values of tis ratio: and, respectively, Te qualitative assessment of te processed products from te new peac cultivars and ybrids was establised by sensorial, biocemical and efficiency analyses. Te results of tese analyzes for te product Peac Nectar are presented in table 2. From te biocemical point of view, te product Peac Nectar registered te igest content of vitamin C at te control cultivar Amalia (6.35 mg/100g), followed by te new cultivars Turtite 2 Băneasa (6.20 mg/100 g), Turtite 1 Băneasa (6.12 mg/100 g) and te ybrid HB 5 43 (6.15 mg/100 g), wile te igest energetic value was registered for te new Roum. Biotecnol. Lett., Vol. 13, No. 5, (2008) 3957

4 A. VOICU, GH. CAMPEANU, M. BIBICU, A. MOHORA, M. NEGOITA, L. CATANA, M. CATANA cultivars Turtite 2 Băneasa (55.97 kcal/100 g) and Turtite 1 Băneasa (54.77 kcal/100 g) by comparison wit te controls tat ave ad lower values. Quality indicator Sensorial properties Product aspect Colour Table 2. Quality indicators of peac cultivars and ybrids processed as Peac nectar Cultivar/ybrid Antoni Amalia Turtite 1 Turtite 2 Turtite 3 D 2 R 32 T 81 HB HB a Turbid liquid, omogenous wit superficial sediment witisgray witis gray cream witisgray ligt w cream wis w HB 5 43 w orang e sweet Taste tasteless sweet sweet sweet sweet tasteless tastel ess sweet Flavour fine intense intense intense fine fine fine fine fine Consistency semi fluid Biocemica l properties Soluble dry substance (%) Glucides(%) Lipids (%) Proteins (%) Vitamin C (mg/100g) Energetic value (kcal/100g) Refuse (%) Te product Peac Nectar was subject of sensorial analysis and te results were presented in table 3. Table 3. Sensorial analyses of peac cultivars and ybrids processed as Peac nectar Cultivar/ Aspect Colour Taste Flavour Total Qualification ybrid average score (P mt ) Antonia good Amalia very good Turtite very good Turtite very good Turtite very good D 2 R 32 T good HB acceptable 3958 Roum. Biotecnol. Lett., Vol. 13, No. 5, (2008)

5 Researc regarding te setting up of te Processing Directions of Peac New Cultivars and Hybrids HB very good HB very good Te new cultivars Turtite 1 Băneasa, Turtite 2 Băneasa, Turtite 3 Băneasa and ybrids HB 7 16, HB 5 43 processed as nectar ave obtained te qualification very good, as well as te control cultivar Amalia and were caracterized by special sensorial qualities, as for example te more attractive aspect of te product, te pleasant sweet balanced taste and intense flavour. Te ybrid D 2 R 32 T 81 processed as nectar as obtained te qualification good, as te control cultivar Antonia, due to te tasteless taste and fine flavour. Te ybrid HB 7 35 obtained te qualification satisfactory due to te tasteless taste, fine flavour and nonattractive aspect of te product. According to te average sizes of te fruits, te peac cultivars and ybrids were processed as compote wit wole fruits: Turtite 1 Băneasa, Turtite 2 Băneasa, Turtite 3 Băneasa and HB 7 16 and as compote wit sliced fruits: Antonia, Amalia, D 2 R 32 T 81, HB 7 35, HB Quality indicator Sensorial properties Fruit aspect Liquid aspect Table 4 presents te quality indicators for te product Peac Compote. HB 7 Table 4. Quality indicators of peac cultivars and ybrids processed as Peac compote Cultivar/ybrid Antonia Amalia Turtite 1 Turtite 2 Turtite 3 D 2 R 32 HB 7 T Fruit pieces are Wole fruit are about te same size. about te same Tey are uniform included in liquid. size. Tey are uniform included in liquid. ligt opalesce nt HB 5 43 Fruit pieces are about te same size. Tey are uniform included in liquid. clear clear clear clear clear clear clear clear Fruit texture soft strong strong strong strong strong strong strong strong Fruit colour w beige w ligt w intense wite intense cream brown cream w cream w w w Liquid colour brown beige wis orange sweet Taste sweet sweet sweet sweet sweet sweet sweetsoury bitteris bitteris bitteris soury soury Flavour intense intense intense intense intense fine intense fine fine Biocemical properties wi sbrown sweet Soluble dry substance (%) Glucides (%) Lipids (%) Proteins (%) Energetic value (kcal/100g) Refuse (%) Roum. Biotecnol. Lett., Vol. 13, No. 5, (2008) 3959

6 A. VOICU, GH. CAMPEANU, M. BIBICU, A. MOHORA, M. NEGOITA, L. CATANA, M. CATANA From te biocemical point of view, te product Peac Compote registered te igest energetic value at te cultivar Turtite 1 Băneasa (76.68 kcal/100 g) as compared to te control cultivar Amalia (76.51 kcal/100 g). In case of te oter cultivars and ybrids te energetic value ranged from kcal/100 g at te ybrid D 2 R 32 T 81, and kcal/100 g at te cultivar Turtite 2 Băneasa. Te product Peac Compote was subject of te sensorial analysis and te results were presented in Table 5. Table 5. Sensorial analyses of peac cultivars and ybrids processed as Peac compote Cultivar/ Aspect Colour Taste Flavour Total Qualification ybrid average score (P mt ) Antonia very good Amalia very good Turtite very good Turtite very good Turtite very good D 2 R 32 T good HB very good HB very good HB good Following te sensorial analysis te product Peac Compote obtained te qualificative very good for tis cultivars and ybrids: Antonia, Amalia Turtite 1 Băneasa, Turtite 2 Băneasa, Turtite 3 Băneasa, HB 7 35 and HB 7 16, due to te attractive aspect of te product and special sweet taste. Also, te particular flavour of te compote obtained from te peac cultivars wit flat fruit was distinguised. Te cultivars and te ybrids wit te stone aderent to te pulp ave registered bigger losses at te nectar and compote processing wit sliced fruit. All te preservation products were microbiologically analyzed registering te absence of aerobe and anaerobic, mesopile and termopile bacteria, as well as te absence of yeasts and moulds. Conclusions Te new peac cultivars: Turtite 1 Băneasa, Turtite 2 Băneasa, Turtite 3 Băneasa and new ybrid HB 5 43 ave distinguised and ad iger values as regards te content of soluble dry substance, total glucides and vitamin C. Also, te new cultivars Turtite 1 Băneasa and Turtite 2 Băneasa ad te igest value of te glucides/acidity ratio. From te sensorial and biocemical point of view, Turtite 1 Băneasa, Turtite 2 Băneasa and HB 5 43 ave distinguised in te nectar processing, and Turtite 1 Băneasa, Turtite 2 Băneasa, Turtite 3 Băneasa, HB 7 35 and HB 7 16 ave distinguised in te compote processing. Based on tese results, te premises are created in order to supply wit consumers te quality products obtained from peac cultivars and ybrids wit ig sensorial and nutritional qualities Roum. Biotecnol. Lett., Vol. 13, No. 5, (2008)

7 Researc regarding te setting up of te Processing Directions of Peac New Cultivars and Hybrids Te results of tese experimentations are used at te registration of te new cultivars of fruit into te Official Catalogue of Cultivated Plants Cultivars from Romania. References 1. A. IVASCU, Sa redescoperim piersicul, Ed. Universitas Company Bucureşti, (2002). 2. D. BECEANU, A. CHIRA, Tenologia produselor orticole. Valorificarea în stare proaspătă şi industrializare, Ed. Economică Bucureşti (2003). 3. A. GHERGHI, Prelucrarea şi industrializarea produselor orticole, Vol. III, Ed. Olimp Bucureşti (1999). 4. D. K. SALUNKHE, H. R. BOLIN, N. R. REDDY, Storage, processing and Nutritional Quality of Fruit and Vegetables 2 nd Edition, vol. II, Processed Fruit and Vegetables, CRC Press (1991). 5. M. ENACHESCU DAUTHY, Fruit and vegetable processing, FAO Agricultural services bulletin No.119, (1995). 6. Colectia de Standarde pentru Industria Conservelor de legume si fructe, vol. I, Ministerul Industriei Alimentare, (1990). Roum. Biotecnol. Lett., Vol. 13, No. 5, (2008) 3961