Search results
4 result(s) search for keyword(s) 'drying,'
Development and testing of low cost solar dryer for drying agriculture commodities / Shreemat Shrestha
in Agricultural research for enhancing livelihood of Nepalese people: Proceedings of 2nd SAS-N Convention, 30 July-1 Aug 2003, Kathmandu / Joshi, Bal K.
Title : Development and testing of low cost solar dryer for drying agriculture commodities Material Type: printed text Authors: Shreemat Shrestha, Author ; Rabi G. Rasaily, Author Pagination: 11-14 p. Languages : English (eng) Keywords: Low cost mud dryer, mushroom drying, solar dryer Abstract: Open solar drying has been traditionally practiced in drying agricultural commodities in Nepal. Open sun drying are prone to the contamination of dust, insects etc. To address these problems, different types of cabinet type solar dryers are developed but are not adopted by Nepalese farmers due to high cost and unavailability of the construction materials in the remote areas. To overcome these problems the low cost solar dryer was developed and comparative testing of it with wooden and metallic (galvanized sheet (GI) sheet fabricated) solar dryer was performed for mushroom drying in Agricultural Engineering Division (AED), Khumaltar. The new model of low cost solar dryer is constructed by using the local construction material mud brick/ stone mud mortar and can be constructed of different size according to the requirement of the farmer. Only the external material used is transparent ultra violet (UV) protected polythene sheet, black board paint and GI net The cost of low cost solar dryer of size 0.8- x I ..S-m is about Rs500 where the wooden and metallic solar dryer of similar size costs about Rs2500 and 6000 respectively. The capacity of the low cost solar dryer of size 0.8- x 1.5-m is of 3 kg of mushroom drying per batch. The duration of drying of mushroom to MC level below I0% is attained within 2 days of drying. The moisture curve of the mushroom in the low cost solar dryer, metallic dryer and the wooden dryer indicated that there is no significant difference at high and low moisture level. The temperature curve of the solar dryers indicated that the rate of increase of temperature of mud dryer is less in the initial 2 hours and after this, it is found to be more than the wooden dryer. The low cost solar dryer can be one of the appropriate options in drying the agricultural commodities in the remote areas due to its performance comparable with the modem solar dryers, and low cost of construction.
Link for e-copy: http://elibrary.narc.gov.np/?r=848 Development and testing of low cost solar dryer for drying agriculture commodities [printed text] / Shreemat Shrestha, Author ; Rabi G. Rasaily, Author . - [s.d.] . - 11-14 p.
in Agricultural research for enhancing livelihood of Nepalese people: Proceedings of 2nd SAS-N Convention, 30 July-1 Aug 2003, Kathmandu / Joshi, Bal K.
Languages : English (eng)
Keywords: Low cost mud dryer, mushroom drying, solar dryer Abstract: Open solar drying has been traditionally practiced in drying agricultural commodities in Nepal. Open sun drying are prone to the contamination of dust, insects etc. To address these problems, different types of cabinet type solar dryers are developed but are not adopted by Nepalese farmers due to high cost and unavailability of the construction materials in the remote areas. To overcome these problems the low cost solar dryer was developed and comparative testing of it with wooden and metallic (galvanized sheet (GI) sheet fabricated) solar dryer was performed for mushroom drying in Agricultural Engineering Division (AED), Khumaltar. The new model of low cost solar dryer is constructed by using the local construction material mud brick/ stone mud mortar and can be constructed of different size according to the requirement of the farmer. Only the external material used is transparent ultra violet (UV) protected polythene sheet, black board paint and GI net The cost of low cost solar dryer of size 0.8- x I ..S-m is about Rs500 where the wooden and metallic solar dryer of similar size costs about Rs2500 and 6000 respectively. The capacity of the low cost solar dryer of size 0.8- x 1.5-m is of 3 kg of mushroom drying per batch. The duration of drying of mushroom to MC level below I0% is attained within 2 days of drying. The moisture curve of the mushroom in the low cost solar dryer, metallic dryer and the wooden dryer indicated that there is no significant difference at high and low moisture level. The temperature curve of the solar dryers indicated that the rate of increase of temperature of mud dryer is less in the initial 2 hours and after this, it is found to be more than the wooden dryer. The low cost solar dryer can be one of the appropriate options in drying the agricultural commodities in the remote areas due to its performance comparable with the modem solar dryers, and low cost of construction.
Link for e-copy: http://elibrary.narc.gov.np/?r=848 E-copies
http://nkcs.org.np/narc/dl/?r=848URL Standardization of Desiccants and Stage of Harvest under Shade Drying Techniques in Gerbera for Value Addition / Manjunath S. Patil in Nepalese Horticulture, v. 8/9 ([07/25/2012])
[article]
Title : Standardization of Desiccants and Stage of Harvest under Shade Drying Techniques in Gerbera for Value Addition Material Type: printed text Authors: Manjunath S. Patil, Author ; A. R. Karale, Author Publication Date: 2012 Article on page: 19-23 p. Languages : English (eng) Keywords: Desiccants, harvesting stage, shade drying, value addition, gerbera. Abstract: The cut flowers are short lived, as they are perishable in nature. Flower drying
offers viable solution to preserve the beauty of cut flowers and extend their
marketability. A study was conducted to investigate appropriate harvesting stage
and desiccant for drying cut flowers of gerbera variety Goliath. Fully opened
flowers or three days before harvesting stage were dried in three desiccants
namely fine river bed sand, silica gel and mixture of sand and silica gel in 1:1
ratio. The desiccants were used as embedding materials of cut flowers in
aluminum boxes. Minimum dry weight (1.17 g/flower) was recorded when silica
gel was used as embedding material, while sand resulted the highest dry weight
(1.27 g/flower). Minimum number of days (5.10) was required to dry the flowers
when silica gel was used as desiccant. Fully opened flowers embedded in silica
gel took the least number of days (5.00) for drying. Silica gel was found superior
for colour retention indicated by highest score (3.93), retention of shape (3.65)
and for retention of shape (3.51).
in Nepalese Horticulture > v. 8/9 [07/25/2012] . - 19-23 p.[article] Standardization of Desiccants and Stage of Harvest under Shade Drying Techniques in Gerbera for Value Addition [printed text] / Manjunath S. Patil, Author ; A. R. Karale, Author . - 2012 . - 19-23 p.
Languages : English (eng)
in Nepalese Horticulture > v. 8/9 [07/25/2012] . - 19-23 p.
Keywords: Desiccants, harvesting stage, shade drying, value addition, gerbera. Abstract: The cut flowers are short lived, as they are perishable in nature. Flower drying
offers viable solution to preserve the beauty of cut flowers and extend their
marketability. A study was conducted to investigate appropriate harvesting stage
and desiccant for drying cut flowers of gerbera variety Goliath. Fully opened
flowers or three days before harvesting stage were dried in three desiccants
namely fine river bed sand, silica gel and mixture of sand and silica gel in 1:1
ratio. The desiccants were used as embedding materials of cut flowers in
aluminum boxes. Minimum dry weight (1.17 g/flower) was recorded when silica
gel was used as embedding material, while sand resulted the highest dry weight
(1.27 g/flower). Minimum number of days (5.10) was required to dry the flowers
when silica gel was used as desiccant. Fully opened flowers embedded in silica
gel took the least number of days (5.00) for drying. Silica gel was found superior
for colour retention indicated by highest score (3.93), retention of shape (3.65)
and for retention of shape (3.51).Study on Post Harvest Shelf Life of Fresh Chilli and Drying .Structure Improvement for Red Ripe Chilli / Ram Bahadur KC ; Moha Datta Sharma
in Proceedings of the fifth National Seminar on Horticulture June 9-10, 2008 / Nepal Agricultural Research Council (NARC) (Khumaltar, Lalitpur, Nepal)
Title : Study on Post Harvest Shelf Life of Fresh Chilli and Drying .Structure Improvement for Red Ripe Chilli Material Type: printed text Authors: Ram Bahadur KC, Author ; Moha Datta Sharma, Author Pagination: 292-295 p. Languages : English (eng) Keywords: Chilli, drying, red ripe, shelf life, weight loss Abstract: Two post harvest studies were carried ·out on chill~ at Regional Agricultural Research
Station, Khajura during winter season 2006 to know the shelf life and identify
appropriate structure of drying for red ripe chilli. In shelf life study higher percent
weight toss trend (16.56, 30.31, 44.98 and 70.96) was observed in cultivar Pusa
Jwala followed by NS 1701 (13.96, 23.08, 33.78, 49.40 & 62.29) after every three
days of interval while the lowest percent weight loss trend was recorded in cultivar
Khairapur Mota (12.86, 20.78, 32.47, 46.66 & 59.12). Cultivar Pusa Jwala reached
early in un-marketable stage by shrinkage and blackish peduncle within 12 days
where as other two cultivar NS 1701 and Khairapur Mota had relatively long shelf life
15 and 18 days, respectively. Significantly higher percent weight loss (37.42, 59.34 &
76.33) was recorded in structure with black cotton sheeted Nang/a covered by
transparent thin poly sheet within nine days. Same level of weight loss was recorded
in black sheeted Nang/a and Nang/a as such after 12 days only. Result indicated that
the maximum shelf life was noted in cultivar Khairapur Mota followed by NS 1701
under ambient room condition. Black cotton sheeted Nang/a covered by transparent
thin polyethylene sheet structure was found the most effective for rapid drying of red
ripe chilli.Link for e-copy: http://elibrary.narc.gov.np/?r=263 Study on Post Harvest Shelf Life of Fresh Chilli and Drying .Structure Improvement for Red Ripe Chilli [printed text] / Ram Bahadur KC, Author ; Moha Datta Sharma, Author . - [s.d.] . - 292-295 p.
in Proceedings of the fifth National Seminar on Horticulture June 9-10, 2008 / Nepal Agricultural Research Council (NARC) (Khumaltar, Lalitpur, Nepal)
Languages : English (eng)
Keywords: Chilli, drying, red ripe, shelf life, weight loss Abstract: Two post harvest studies were carried ·out on chill~ at Regional Agricultural Research
Station, Khajura during winter season 2006 to know the shelf life and identify
appropriate structure of drying for red ripe chilli. In shelf life study higher percent
weight toss trend (16.56, 30.31, 44.98 and 70.96) was observed in cultivar Pusa
Jwala followed by NS 1701 (13.96, 23.08, 33.78, 49.40 & 62.29) after every three
days of interval while the lowest percent weight loss trend was recorded in cultivar
Khairapur Mota (12.86, 20.78, 32.47, 46.66 & 59.12). Cultivar Pusa Jwala reached
early in un-marketable stage by shrinkage and blackish peduncle within 12 days
where as other two cultivar NS 1701 and Khairapur Mota had relatively long shelf life
15 and 18 days, respectively. Significantly higher percent weight loss (37.42, 59.34 &
76.33) was recorded in structure with black cotton sheeted Nang/a covered by
transparent thin poly sheet within nine days. Same level of weight loss was recorded
in black sheeted Nang/a and Nang/a as such after 12 days only. Result indicated that
the maximum shelf life was noted in cultivar Khairapur Mota followed by NS 1701
under ambient room condition. Black cotton sheeted Nang/a covered by transparent
thin polyethylene sheet structure was found the most effective for rapid drying of red
ripe chilli.Link for e-copy: http://elibrary.narc.gov.np/?r=263 E-copies
http://nkcs.org.np/narc/dl/?r=263URL Quality Assessment of Ctc Tea by Chemical Analysis Methods / M. B. Shrestha ; M. J. Thapa ; R. C. Bhandari
Title : Quality Assessment of Ctc Tea by Chemical Analysis Methods Material Type: printed text Authors: M. B. Shrestha, Author ; M. J. Thapa, Author ; R. C. Bhandari, Author Pagination: 93-97 p. Languages : English (eng) Keywords: chemical analysis, drying, fermentation, green tea leaves, withering Abstract: Black tea (CTC) were prepared from tea parts green leaf (two leaves and one bud) collected
from Jhapa tea garden by varying the fermentation time as 1.0, 1.30, 2.0 and 2.30 hours at
25.5 °C in the laboratory and it was analyzed. The caffeine content, water extract, crude fiber,
total ash, water soluble ash, acid insoluble ash and alkalinity of ash ranged from 2.91 to 3.53,
32.97 to 38.45, 9.41 to9.67, 6.38 to 6.73, 44.80 to 52.43, 0.32 to 0.59 and 1.81 to 2.06%
respectively. Black tea (CTC) were collected from different tea industries and were analyzed.
The caffeine content, 1\'ater extract, crude fibber, total ash, water soluble ash, acid insoluble
ash and alkalinity of ash rang from 2.60 to 3.82, 34.15 to 42.28, 10.43 to 14.85, 5./7 to 7.27,
36.17 to 65.15, 0.03 to 0.62 and 1.35 to 1.80 %respectively. Analysis showed that caffeine
content in the prepared black tea was higher as compared to industrial prepared tea. Crude
fibber content is low in the lab prepared iea as it is prepared from 2 leaves one bud where as
the tea collected from industry showed high crude fiber. Result showed that caffeine content
increased and water extract decreasing at certain level as the fermentation time increased.
One-hour fermentation time showed better quality tea because it gave low caffeine and high
water extract than other fermentation time and it was also better than industrial tea samples.Link for e-copy: http://elibrary.narc.gov.np/?r=471 Quality Assessment of Ctc Tea by Chemical Analysis Methods [printed text] / M. B. Shrestha, Author ; M. J. Thapa, Author ; R. C. Bhandari, Author . - [s.d.] . - 93-97 p.
Languages : English (eng)
Keywords: chemical analysis, drying, fermentation, green tea leaves, withering Abstract: Black tea (CTC) were prepared from tea parts green leaf (two leaves and one bud) collected
from Jhapa tea garden by varying the fermentation time as 1.0, 1.30, 2.0 and 2.30 hours at
25.5 °C in the laboratory and it was analyzed. The caffeine content, water extract, crude fiber,
total ash, water soluble ash, acid insoluble ash and alkalinity of ash ranged from 2.91 to 3.53,
32.97 to 38.45, 9.41 to9.67, 6.38 to 6.73, 44.80 to 52.43, 0.32 to 0.59 and 1.81 to 2.06%
respectively. Black tea (CTC) were collected from different tea industries and were analyzed.
The caffeine content, 1\'ater extract, crude fibber, total ash, water soluble ash, acid insoluble
ash and alkalinity of ash rang from 2.60 to 3.82, 34.15 to 42.28, 10.43 to 14.85, 5./7 to 7.27,
36.17 to 65.15, 0.03 to 0.62 and 1.35 to 1.80 %respectively. Analysis showed that caffeine
content in the prepared black tea was higher as compared to industrial prepared tea. Crude
fibber content is low in the lab prepared iea as it is prepared from 2 leaves one bud where as
the tea collected from industry showed high crude fiber. Result showed that caffeine content
increased and water extract decreasing at certain level as the fermentation time increased.
One-hour fermentation time showed better quality tea because it gave low caffeine and high
water extract than other fermentation time and it was also better than industrial tea samples.Link for e-copy: http://elibrary.narc.gov.np/?r=471 E-copies
http://nkcs.org.np/narc/dl/?r=471URL