ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Comparative Studies of Limonin and Naringin Distribution in Different Parts of Pummelo [Citrus grandis (L.) Osbeck] Cultivars Grown in Thailand)

ผู้เขียน:Suwanna Pichaiyongvongdee, Ratiporn Haruenkit

สื่อสิ่งพิมพ์:pdf

Abstract

Seven pummelo cultivars: Kao Numpueng (KNP), Thong Dee (TD), Kao Paen (KP), Kao Yai (KY), Tha Knoi (TK), Kao Tanggwa (KTG) and Pattavee (PV) grown under Thai pummelo fruit conditions were selected for comparative studies on the distribution of limonin and naringin in various parts of the fruit. In this study, the highest amount of limonin was detected in the seeds of all cultivars. Lesser amounts were detected in albedo followed by flavedo, segment membranes and juice. The limonin content in the seeds ranged from 1375.31- 2615.30 ppm, with the lowest amount in the juice being 10.07–29.62 ppm. The limonin in albedo in decreasing order of cultivars was: TK, TD, KTG, KNP, PV, KY and KP (352.72-133.58-ppm). The limonin in flavedo in decreasing order of cultivars was: PV, TD, KP, KNP, TK, KTG and KY (295.49-130.16 ppm), while in segment membranes the decreasing order of cultivars was: PV, KTG, KNP, TD, KY, KP and TK (293.14–85.81 ppm). Naringin was found in a greater amount than limonin in all fruit parts of the cultivars studied. The order of fruit parts that contained naringin in a decreasing amount was: albedo, flavedo, segment membranes, seeds and juice. The order of cultivars containing naringin in the albedo in a decreasing amount was: KTG, KNP, KP, KY, TK, PV, TD (28,508.01–10,065.06 ppm). In the flavedo in decreasing amounts, the cultivar order was: PV, KTG, KNP, KP, KY,TD and TK (8,964.24–2,483.96 ppm), while in the segment membranes the decreasing order was: KTG, KY, TD, TK, PV, KP and KNP (4,369.50–1,799.48 ppm). In the seeds, the decreasing order was: PV, KTG, KNP, TD,and KP (426.66- 257.87 ppm). In the juice, the decreasing order was: PV, TK, KY, TD, KNP, KP and KTG (386.45–242.63 ppm). The chemical composition of the pummelo juice samples showed a high content of ascorbic acid in the range of 37.03–57.59 mg/100ml. The total soluble solids range was 7.14–9.45 OBrix, the titratable acidity range was 0.38–0.98(g/100ml) as citric acid, and the pH range was 3.69–4.05.

Article Info

Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 043, Issue 1, Jan 09 - Mar 09, Page 28 - 36 |  PDF |  Page

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Comparative Studies of the Adaptability, Production, and Segregating Behavior of the Indigenous and a Newly-Introduced Guatemala Corn Varieties.1 )

ผู้เขียน:jinda jan-orn, Chamnan Tonglad, Wachari Suwanwihok, Amphorn Benponk, , C.A. Breitenbach2, Slearmlarp Wusuwat

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Abstract

Field corn in Thailand has been grown mainly for export. It’s most desirable characteristics are found in the flinted and semi-flinted types which have a deep yellow kernel and hard endosperm. A corn variety that possesses such characteristics is known locally as Guatemala corn. This variety has been introduced from Guatemala in 1952. After five successive generations of selection and tests, it has proved to adapt well and yield best among corn varieties to farmers in 1959(1).

Article Info

Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 005, Issue 3, Sep 65 - Dec 65, Page 122 - 127 |  PDF |  Page