Agriculture Reference
In-Depth Information
Table 22.8. Influence of storage time (0, 3, 6 weeks' cold storage + 1 week at 20 C) on aroma volatiles
of 'Owari' mandarins. Only those volatiles with statistically significant changes due to storage are
shown.
Concentration (μg/liter) at Storage Week
Compound
Descriptor
Wk-0
Wk-1
Wk-4
Wk-6
Ethanol
692.9
808.1
1018.7
1068.6
Ethyl acetate
Pleasant, fruity
67.4
306.5
595.5
532.6
Ethyl propanoate
Sweet, fruity
3.4
10.2
27.7
18.4
3-Methylbutanol
Malty
0.0
62.5
255.7
366.0
2-Methylbutanol
Malty
0.0
39.9
184.0
263.1
Ethyl 2-methylpropanoate
Sweet, fruity
0.1
0.3
2.0
2.1
Ethyl 2-butenoate
Pungent, alliaceous
0.0
0.2
0.9
1.0
Ethyl 2-methylbutanoate
Apple
0.1
0.7
3.6
2.6
β -Myrcene
Musty, wet soil
169.3
194.5
87.8
76.8
Octanal
Fatty, citruslike
43.2
42.1
32.0
26.7
α -Terpinene
Lemony, citrusy
32.0
32.7
20.2
20.1
p-Cymene
Solvent, citrus
198.0
223.1
139.4
125.2
β -Ocimene
Herbaceous, sweet
13.1
16.1
6.7
6.2
γ -Terpinene
Lemony, limelike
28.5
38.8
20.6
21.1
Terpinolene
Citrus, pine
90.5
88.1
61.3
55.4
1,3,8-Para-menthatriene
Oily, woody, pine
0.7
0.7
0.5
0.4
4-Terpineol
Woody, earthy
22.7
22.8
19.5
18.9
Octyl acetate
Fruity, slightly fatty
0.4
0.5
0.2
0.2
Carvone
Spearmint or carraway
21.9
16.3
14.0
7.4
Perillaldehyde
Green, oily, cherry
15.1
12.6
7.2
4.1
Source: Obenland et al. (2011).
processing influences vitamin C content, as canned juice
has less vitamin C activity as compared to frozen juice
concentrates.
processing have improved the efficiency of various unit
operations including extraction, clarification, essential oil,
and manufacturing of novel products. Tangerine, mandarin,
and clementine are bestowed with rich phytochemistry and
thus hold a variety of health benefits, too. However, care
should be taken during harvesting, transportation, process-
ing, and subsequent storage to reduce the postharvest and
nutritional losses.
SUMMARY
Tangerine, mandarin, and clementine are important citrus
species with significant nutritional and therapeutic poten-
tial. These fruits fall under the category of easy peelers.
Globally, over 65% of these citrus species are consumed as
fresh, while the rest are processed into value-added prod-
ucts including juice, essential oils, and so on. The pre- and
postharvest management is important to retain the quality
of citrus species. In this regard, pesticides, fungicides,
and growth promoters are applied prior to harvesting.
Moreover, washing, fungicide application, wax and edible
coatings, and refrigeration are important postharvest man-
agement practices. Technological advancements in food
REFERENCES
Areias F, Rego A, Oliveira C, Seabra R. 2001. Antioxidant
effect of flavonoids after ascorbate/Fe(2 + )-induced oxida-
tive stress in cultured retinal cells. Biochem Pharmacol 62:
111-18.
Arpaia ML, Kader AA. 2000. Mandarin/tangerine: Recom-
mendations for maintaining postharvest quality. http://www.
coolforce.com/facts/Fruit/mandarin.html .
Ayhan Z, Zhang QH, Min D. 2002. Effects of pulsed electric
field processing and storage on the quality and stability
 
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