Solar drying characteristics of papaya (Carica papaya) latex

Narinesingh, Dyer; Mohammed‐Maraj, Rahzia

doi:10.1002/jsfa.2740460205

Cited by 11 publications

(3 citation statements)

References 7 publications

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“…With the aid of laboratory mortal and pestle, the latex was ground producing a greenish or grey powder known as papain [20] which is known to have a proteolytic activity slightly higher than that of the fresh latex [21].…”

Section: Isolation Of Latex From C Papayamentioning

confidence: 99%

Chemical Analysis of Carica papaya L. Crude Latex

Macalood¹,

Vicente²,

Boniao³

et al. 2013

AJPS

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Crude latex of Carica papaya L. has been known to offer a lot of benefits and potentials especially in the agricultural industry and human health. This study focuses on the latex coming from its fruits of Papaya CX variety. Seven to eight longitudinal incisions were made in order to allow latex to appear and drain in the collecting devices. 439.5 g dried latex was stored in plastic containers and freezed. Results showed that dried latex contained higher amount of crude protein (57.24 ± 0.69%), followed by moisture (17.76 ± 0.09%), ash (7.00 ± 0.01%), crude fat (5.21 ± 0.13%) and crude fiber (0.67 ± 0.09%) based on the complete proximate analysis. In the enzyme analysis, papain had protease activity of 2655 units·g −1 at pH 5.5 and 285 units·g −1 at pH 9.0. These results provided evidence that papain as a protease enzyme is found in the crude latex of papaya which is a major constituent in various proteolytic activities. Crude latex from C. papaya L. can be utilized to address the issues in agricultural farms to accelerate production and reduce environmental hazards.

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Section: Isolation Of Latex From C Papayamentioning

confidence: 99%

Chemical Analysis of Carica papaya L. Crude Latex

Macalood¹,

Vicente²,

Boniao³

et al. 2013

AJPS

View full text Add to dashboard Cite

show abstract

“…W hen a pawpaw fruit was first tapped, one incision was made and consecutive extractions increased the number of incisions. Latex was frozen at -20C to -8C in the lab to prevent enzyme degradation until it was ready to be used for chemical analysis (Narinesingh and Maraj, 1989).…”

Section: Collection Of Latexmentioning

confidence: 99%

Study on Measuring Proteolytic Activity and Phyto Chemical Analysis of Fruit Latex and Leaves Extract of Papaya (Carica papaya L.) Cv. CO2

Mirza,

Srujana,

Singh

2023

IJARe

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Background: Papaya latex is a milky fluid secreted by ducts and is a complex mixture of phytochemicals (secondary metabolites). Lowry’s method was used to quantify the papain extracts from the fruits and leaves to measure cysteine protease activity. Methods: The experiment was conducted using the extracts of papaya fruit latex (Papain) and leaf extracts for phytochemical analysis. As a result, the enzyme concentration in crude extracts was highest in the fruit latex and lowest in the leaves. The dialyzed leaves extract band/color was very light in comparison to the fruit latex band/color, indicating that the enzyme concentration in the crude leaves sample was the lowest. Result: Quantitative estimation of protein content was observed higher in papaya fruit latex papain (82.5 mg/ml) and in papaya leaves (36.6 mg/ml). Positively higher significant results were also confirmed for the protease activity examined for latex and leaves valued 6.34 mg and 5.323 mg, respectively, whereas, the similar results were noted for the content of phytochemical constituents in fruit latex for glycosides, saponins and terpenoids as well as in leave extract for glycosides, flavonoid, phenol, reducing sugar, tannins, terpenoids, saponins.

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“…A very broad range of dried fruits have been produced using a variety of solar dryers. Some examples of solar dried fruits include bananas (Schirmer et al, 1996;Amer et al, 2010;Smitabhindu et al, 2008;Koua et al, 2009;Janjai et al, 2009), papaya (Narinesingh, andMohammed-Maraj, 1998), mangos (Koua et al, 2009), apricots (Sarsilmaz et al, 2000;Togrul and Pehlivan 2002), figs (Doymaz, 2005), pumpkins (Sacilik, 2007)), apples (Aktas et al, 2009), pineapples (Bala et al, 2003), plums (Tarhan 2007), strawberries (El-Beltagy et al, 2007), grapes (Yaldiz, 2001;Jairaj et al, 2009;Pangavhane and Sawhney, 2002;Fadhel et al, 2005;Barnwal and Tiwari, 2008) and mulberries (Akbulut and Durmus, 2010;lemons, usually sliced, (Chen et al, 2005) and the peel of prickly pears (Lahsasni et al, 2004). In multiple locations, many herbs and spices are, as a matter of course, dried in the sun or in solar dryers (Muller et al, 1989;Janjai and Tung, 2005;Prasad et al, 2006;Janjai et al, 2008;Kumar and Tiwari 2006;Arslan and Ozcan, 2008) peppers.…”

Section: Drying Processesmentioning

confidence: 99%

Characteristics of Different Systems for the Solar Drying of Crops

Norton¹

2017

Solar Drying Technology

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Solar dryers are used to enable the preservation of agricultural crops, food processing industries for dehydration of fruits and vegetables, fish and meat drying, dairy industries for production of milk powder, seasoning of wood and timber, textile industries for drying of textile materials. The fundamental concepts and contexts of their use to dry crops is discussed in the chapter. It is shown that solar drying is the outcome of complex interactions particular between the intensity and duration of solar energy, the prevailing ambient relative humidity and temperature, the characteristics of the particular crop and its pre-preparation and the design and operation of the solar dryer.Temperatures from -37 C to 71 o C kill bacteria and inactivate enzymes, although, as such temperatures are also likely to cause crop surface hardening, lower operating temperatures in the range 40 C to 45 o C as shown in Table 1 are generally more common place in solar dryers.For many crops pretreatment is recommended such as washing, blanching and cutting into thin slices. Crops are generally harvested at moisture contents ranging from 16% to 30% wet basis and must be dried to a safe storage moisture contents given in Table 1. In grain drying, fissures that can arise from excessive moisture and temperature gradients lead to broken grains during milling reducing the milled cereal yield. Prompt packing in hermetically sealed containers is essential if for consumer acceptability higher safe storage moisture are used for example as is the case for some dried fruits. Bassey MW, Oosthuizen PH and Sarr J. (1994) Using heated chimneys and reduced collector air gap height to improve the performance of indirect passive solar dryers. Renewable Energy, 4: 169-178. Basunia MA and Abe T. (2001) Thin-layer solar drying characteristics of rough rice under natural convection. J Food Engineering. 47: 295-301. Bechoff A, Dufour D, Dhuique-Mayer C, Marouze C, Reynes M and Westby A. (2009) Effect of hot air, solar and sun drying treatments on provitamin A retention in orange-fleshed sweet potato. Journal of Food Engineering, 92: 164-171. Bena B and Fuller RJ. (2002) Natural convection solar dryer with biomass back-up heater. Solar Energy, 72: 75-83. Evaluation of a rice drying system using a solar assisted heat pump. Renewable Energy, 5: 465-468. Chauhan PM, Choudhury C and Garg HP. (1996) Comparative performance of coriander dryer coupled to solar air heater and solar air-heater-cum-rock bed storage. Applied Thermal Engineering, 16: 475-486. Chavan BR, Yakupitiyage A, Kumar S. (2008) Mathematical modelling of drying characteristics of Indian mackerel (rastrilliger kangurta) in solar-biomass hybrid cabinet dryer. Drying Technology Int J, 26:1552-62, Chen H-H, Hernandez CE and Huang T-C. (2005) A study of the drying effect on lemon slices using a closedtype solar dryer. Solar Energy, 78: 97-103. Das SK and Kumar Y. (1989) Design and performance of a solar dryer with vertical collector chimney suitable for rural application. Energy Conversion and Management...

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Solar drying characteristics of papaya (Carica papaya) latex

Abstract: ABSTRACT

Cited by 11 publications

References 7 publications

Chemical Analysis of <i>Carica papaya</i> L. Crude Latex

Chemical Analysis of <i>Carica papaya</i> L. Crude Latex

Study on Measuring Proteolytic Activity and Phyto Chemical Analysis of Fruit Latex and Leaves Extract of Papaya (Carica papaya L.) Cv. CO2

Characteristics of Different Systems for the Solar Drying of Crops

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Solar drying characteristics of papaya (Carica papaya) latex

Abstract: ABSTRACT

Cited by 11 publications

References 7 publications

Chemical Analysis of &lt;i&gt;Carica papaya&lt;/i&gt; L. Crude Latex

Chemical Analysis of &lt;i&gt;Carica papaya&lt;/i&gt; L. Crude Latex

Study on Measuring Proteolytic Activity and Phyto Chemical Analysis of Fruit Latex and Leaves Extract of Papaya (Carica papaya L.) Cv. CO2

Characteristics of Different Systems for the Solar Drying of Crops

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Product

Resources

About

Chemical Analysis of <i>Carica papaya</i> L. Crude Latex

Chemical Analysis of <i>Carica papaya</i> L. Crude Latex