Sage Journals: Discover world-class research

Abstract

Different measurement modes (reflectance, interactance and transmission) and spectral windows (500–1100 nm) were compared for their ability to predict non-destructively the harvest soluble solids content (SSC) and titratable acidity (TA) of Satsuma Mandarin (Citrus reticulata cv. “Miyagawa”). A direct transmission measurement mode (source and sensor opposite sides of fruit) coupled with a single spectral window from 700 to 930 nm delivered the most accurate SSC predictions (R² = 0.93, RMSEP = 0.32%). Accurate TA prediction was not possible with any measurement mode and the predictive ability that was achieved (best results: R² ∼ 0.65, RMSEP ∼ 0.15%) was only afforded indirectly through a correlation with the skin chlorophyll changes that occur as the fruit mature.

Keywords

NIR spectroscopy non-destructive test mandarin fruit quality soluble solids content acidity

Get full access to this article

View all access options for this article.

References

Richardson

Marsh

K.B.

and MacRae

E.A.

, J. Hortic. Sci. 72, 919 (1998).

Harty

, HortResearch Internal Report 10732, HortResearch, Hamilton, New Zealand (1995). (Also available at http://www.hortnet.co.nz/publications/science/satsuma.htm).

Kawano

, Jap. Agric. Res. Quart. 28, 212 (1994).

Kawano

Fujiwara

and Iwamoto

M.J.

, J. Jap. Soc. Hortic. Sci. 62, 465 (1993).

Miyamoto

Kawauchi

and Fukuda

, J. Near Infrared Spectrosc. 6, 267 (1998).

Fraser

D.G.

Jordan

R.B.

Künnemeyer

and McGlone

V.A.

, Postharvest Biol. Technol. 27, 185 (2003).

McGlone

V.A.

Jordan

R.B.

and Martinsen

P.J.

, Postharvest Biol. Technol. 25, 135 (2002).

Greensill

C.V.

and Walsh

, J. Near Infrared Spectrosc. 7, 109 (2002).

Abbott

J.A.

Upchurch

and Stroshine

, Hortic. Rev. 20, 1 (1997).

10.

Miyamoto

Kitano

, J. Near Infrared Spectrosc. 3, 227 (1995).

11.

Williams

and Norris

, in Near-Infrared Technology in the Agricultural and Food Industries, Ed by Williams

and Norris

American Assoc. of Cereal Chemists Inc., Minnesota, USA, p. 241 (1987).

12.

McGlone

V.A.

and Kawano

, Postharvest Biol. Technol. 13, 131 (1998).

13.

Delwiche

M.J.

Affeldt

H.A.

Birth

Brown

G.K.

Guyer

D.E.

Hetzroni

Peleg

and Thai

C.N.

, in Proc. Int. Workshop on Non-destructive Technologies for the Quality Evaluation of Fruit and Vegetables, Ed by Brown

G.K.

and Sarig

ASAE, St Joseph, MI, p. 63 (1994).

Internal Quality Assessment of Mandarin Fruit by vis/NIR Spectroscopy

Abstract

Keywords

Get full access to this article

References